In 'ye good olde' Smash Bros. Melee, a friend of me once took Ness (Lil' psycho-kid) on the Onett stage. (the one with the cars) He kept getting hit by the cars, launched, and smashed into the screen. Once, he said "Eww, a Ness on my windscreen." and since then, it's been said any time Ness got hit by a car or into the screen.

-One time in SSBB, me, my friend and some of his friends were doing a tournament and my friend kept on being Zelda/Shiek. So in a match, he kept on switching between them to annoy us and I said "Stop being a hussy Shelda!" Now every time my friend uses Shiek/Zelda, we always yell in high-raspy-old lady voices asking "Shelda" how her day ways.

- We were playing MArio kart Wii, and one of my friends were Baby Peach. Since in every single player race, Baby Peach was usually in the top 3 racers, so when the friend was braging about how he was winning, I said "why?!?! Because you're 'fucking[' baby peach?!?!?!"
Didn't come out right XD

One of my KotOR-loving friends and I have lovely memories of Carth Onasi shouting "Down you go!" and trying to shoot a Dark Jedi in the face before being power attacked and subsequently KO'd, so now we yell it whenever we're about to do something stupid or suicidal.

After a match of Halo3 we tend to act extremely British stereotype "Pip pip tally-ho! Crumpets!". Be damned if I know why though, we are British so it's not insulting to British people :D

When playing Halo (doesn't really matter which one) I tend to scream at my opponents while pistol-whipping with anything i can find.

My mate in Halo also tries to get a Banshee at any opportunity and sing "I'm the Banshee Fairy" fo the whole time he has it.

Coincidently, when i'm not screaming at peoples faces and pistol whipping them i steal the ghost what happens after that is pretty much the same but it ends in people being run over.

(I'm not typically a loud player, i just enjoy screaming when i play Halo.)

Super smash bros. (again, doesn't matter which one as long as it has Game & Watch)

I always annoy my friends by dodging all attacks as Game & Watch and then do his Bell ringing taunt constantly.

The only thing my friends think is worse is our mate meg who doesn't fight, she just does her favourite taunt as pikachu while the other fighters fight to for the right to knock her out.

I was playing through F.E.A.R while a friend was over. At some point during a firefight a replicate soldier must have gone buggy and it spawned outside the map, where it began shooting at me anyway. Me and my friend put our heads together and decided that the bullets flying at me could only be the work of a Wall Demon. From that point on whenever I was damaged by an unseen enemy, it was the work of a sinister Wall Demon.

Simon_TR:
When I was young, me and my brother and sister would play a lot of adventure games. We got stuck at one point while playing Full Throttle during the stage where you need to find gas for your bike. We figured out how we were supposed to get the gas, by draining it from the police hovercraft thingy, but we didn't understand the idea of siphoning gas back then. So after trying many different combinations of items and and actions we were about to give up when I angrily said, "Make him suck the gas pipe!" as a joke. To our surprise, he began to suck the gas through the pipe and siphon it into the canister. From then on, we've used the phrase "Suck the gas pipe" whenever we become stuck in a game, to remind us to chase every option no matter how silly it may seem.

that's heartwarming. I love it.

Someone I met on Guild Wars has the battlecry Leeroy Jenkins. Don't ask how but everytime if we get stuck somewhere and cant get passed he'll say it and as if by magic the enemies just get rolled over by our next charge at them. Works on first attempts too sometimes (although that could be the enemies being stupid and easy to defeat).

When I played WoW once upon a time, my guildies and I were raiding Karazhan. Someone made some sexual joke or another, and an officer responded, "But I poop from there!"

After that day, "But I poop from there" became the universal response during raids.

Me and my friends have a couple I think.

Thanks to the reactions of one rather outspoken American when expressing his thoughts about my friends rank on Halo 3, we now frequently exclaim the phrase "OH MY GOD IT'S A F***ING BRIGADIER!" when someone gloats about their rank.

Also thanks to another overzealous American, we were gifted with the gem of "You wanna know how to piss off a limey? Mention the f***ing revolution! *corny forced laugh*" just as a token reminder of some Americans complete stupidity and ignorance of other countries besides their own.

There are some more quite funny ones that escape me at the minute but I'll post more if I remember them.

Many, many "That's what she said jokes"

"I'm the Juggernaut bitch!" (and many other references from that parody)

Whenever my friends are playing annoying while playing CoD4, I just blast Deep and Hard

Also if I'm a terrorist "Ay-ie-ie-ie Kshh" or "Silence, I kill you!" (dead terrorist rule!)

-Me and my friend always quote the "Suprise, c***f**!" line from Team America whenever we play Halo 3. Especially common when we're playing our custom game type that involves semi-invisibility and energy swords.

-Another of my friends will always declare "We're going on a mystery tour!" before driving off a cliff/into a minefield. In fact the same guy reads from the Dictionary of Fishing in a funny voice during games just to annoy everyone.

Dragon Ball Z Sagas.

Being the only two people to sit through it all on co-op and regretted it immediately afterwards.

What a terrible game.

One time, me and my friend were plaing a 2 on 2 game of Warcraft 3 and we were getting beaten pretty badly, so the other guys were laughing and pointing out our stupidity and/or noobishness, then I got a crazy idea. I went to the chat box and typed in "Cheat Activated" (I don't think you can cheat in online matches) and the other two guys quit, so whenever we're playing each other in fighting games or shooters, sometimes one of us says "Cheat Activated"

Most of this awesomeness happened in one night at a *ahem "sleepover" when my freind decided to show me the awesome story of cod4 in some iraq level(the one before war pig i think), after getting pinned down behind some cover i decide to make a push as i run out round the corner of the cover *fshwoom* I hear that terrible sound of a rpg being launched i think,
"aw shit im dead" as Lt.Hammond runs infront taking a direct rpg shot to the face.
As soon as i saw his corpse fall to the ground i started shouting "HAMMOND" in a vaugley american detective voice(really i pronounced it hemmind)and "bring it to me you fucking towelheaded jawas!"whilst blindly firing at them, now whenever someone dies we shout "HAMMOND" and refer to terrorists as "towelheaded jawas".
Another fun happening was on halo when ever my freind gets harmed he always shout "RUN AWAY!" and pegs it he treid to do it on Assassins creed at my house on the last mission and he though he was safe on top of a building and then gets shot by a archer and falls to his doom it was hilarious now whenever he is in trouble he shout "RUN AWAY, but no meanie archers"
Another halo one was we always tea-bag and "donkey punch" eachother(we use the phrase donkey punch alot aswell) and he asked me "Why are we teabagging eachother? Our characters are bothe dudes" and i relpyied "well your guys a dude i have a vagina for a face" Epic lols ensued and now arby is refered as vagina-face.

We used to have epic halo 1 Lan parties, and my friend would name his character, "Your Mum."
Obvious hilarity then ensued:
"You headshotted Your mum!"
"You beat down Your mum!"
"You splattered Your mum!"

A running joke in BF2142 I have with a friend of mine is, "Goddamit, Brutus, shut the fuck up." Because I talk so much on voip he couldn't get a word in, when he was squad leader.

You know that 'Find The Fish' scene from Monty Python? And that weirdo who strokes his whiskers with his really long arms? What me and my friend do is stroke imaginary whiskers while saying, "A racist, a racist, a racist, oh!"

Also, murlocs are a heavy fixture for me and my friends.

Me and my mates have masses from games we played back in the day when we went over each others houses to play each other. The most recent one we've come up with though (we still go over each others places as we collectively don't get online multi-player) is when one of us plays a diddy kong for a laugh on smash bros brawl.

The guy who does it, as well as being targeted by everyone for the crime of being diddy kong, has to mess up peoples attacks and be annoying simply by using his side B repeatedly followed by A. At this point one of us, if not all, shout 'face fuck!'

Falcon Bagpipes!
Basically you start by shouting "Falcon..." and moving as if your about to throw a punch, then shout something along with an action that could be easily turned from the punch stance. Shared amongst all my gaming buddies.
Also, Ive replaced my "Take this!" call in fighting games with Ganondorfs "Rrrrrargh!" for his Ganon punch cause of some most excellent timing during an online game that won me the match with a triple KO.

Whenever I'm doing particularly well in a FPS game with a kill streak, I just start screaming "KILL ME!!! SOMEONE KILL ME!", "IS THERE NO ONE ELSE?!", and/or "ARE YOU NOT ENTERAINED?!" (from the movie Gladiator).

But the best, and most fun, running joke, while a little bit racist but still funny... well it goes like this. There's a story behind it.

See, one of my ex-girlfriends was a young lady of noticeable African descent (she was black). And friend of mine who enjoys the occasional racist joke and also likes to drop insults on me for dating a black girl. We also play X-Box Live together.

So anyways. We'll be playing the game, insulting each other as always just for no reason other than to provide the team we are on with entertainment. Eventually he pulls out the "n---er lover" line and I start calling him a honky shortly before just saying "Dude, you gotta try it... I'm telling you. Its fantastic, like nothing else!" and I begin to involve every other team memeber. Some join his side, others are like "Yeah man! That's what I'm talking about! I love Beyonce!" with me. So we end up having this long, very comedic conversation about the joys of sexual relations with members of other races, and how "Dude, once you go black, you never go back... I'm telling you." in joking while we enjoy the laughter and confusion of our team mates.

Good times.

I have a few:
My friend and I were using 360 voice chat to talk to eachother while playing Devil May Cry 3, and I had just unlocked the Nevan weapon (a guitar/sythe that, when played, summons lightning and bats to attack the enemy. (Seriously)). I was testing out Nevan's different attacks which mostly involved playing rock music to create bats and lightning, and discovered an incredibly powerful (and awesome) attack, so I told my friend "I just discovered an awesome attack! I'm going to celebrate... WITH A ROCK GUITAR SOLO!" and I started to string together several attacks. We both started to say that every time we did something impressive in the game such as defeating a boss or getting a SSS combo, and eventually applyed it to just about everything, no matter how pointless ("I just walked forward! time to celebrate... WITH A ROCK GUITAR SOLO!").

Whenever my friend or I use Dante's guns in DMC, we start singing "Ebony and Ivory" (The names of the guns).

I told my friend about an alternate costume for Dante in DMC3 that was Sparda's human form, and he asked me what it looked like, so I told him "Sort of like Vergil combined with George Washington". We started to call Sparda "George Washington-man".

I also like to immitate "Leon Phelps, the Ladies Man" from the film and SNL sketch, The Ladies Man, and I say things like "Oh, this mothafucker think's he's slick, but he ain't slick. He WISH he was slick... but he ain't." And my buddies usually join in with, "He right, he thought he was slick..."

I have twenty of these but here's a few:

-When someone comes from way behind in a match and wins, I end up shouting "Who the hell let John Cena in here?" (heh heh, WWE joke)

-Anytime I see someone get in a mongoose in halo 3, I counter with "You may be good with the mongoose, but I'm an expert with a beaver!

-Randomly shouting "KILL IT WITH FIRE"!

-Friend replying with "BUT WE"RE OUT OF FIRE!"

Me and my best friend play Splinter cell Double agent together on xbl a lot, always playing as the the mercs, and we have several sayings and habits.

"Whoopsie!" when ever we grenade kill a spy,

"Sorry, were you using that face?" when ever we headshot a spy.

"Sammy, go get 'em!" Sammy is the name of the explosive drone the mercs use, to this day we have no idea where the name came from.

"Shit, dude. don't move, there's a spider on your face. I'll get it" whenever we have a spy held by the neck.

"Awww, how come they get jetpacks?" whenever an explosion sends a spy flying across the map.

and my personal favorite: "I hope that's a gun i can feel." when ever we get grabbed by a spy

WoW ''Hey guys, when I take my staff in my hand... it grow up! '' Im a french canadian and when I said that during a lowly kara bardge run I didnt thougth about the fact that it sounded sexual at all. And yeah, some retards in the blizz dev team tough that the tauran weapons were too big and was clipping too much. And then they scaled it down but only on your back...So when you unsheated your weapon, it grew up. And that only 3 year after release...GG. Fortunaly they reverted that retarded change. But yeah, they always remind me of that! :P

Also, when I log on in game or in vent. Firts thing I will hear is:

Loot whore: self explonatory ( sp? )... Im a shaman, so I have 3 set for my 3 spec and tons of useless stuff all of epic quality. >:P
Sexy beo or sexy voice is here ( We all posted our pics on our guild forum and I have suposebly a pleasant voice )
Sing beo SIIING! ( I sing random and really cheesy pop old and new music. )
Will you kill the whole raid tonight beo?! ( Once in big frigging blood elf ship that I cant remember the name we were wiping so everyone headed for the exit but I got a debuff that make me explod and stuff... so when I got the debuff I was yelling ''IMA GUNNA KILL YA ALL MWHAHAHA'' in vent and they were all like ''no no no, get away, beo wtf lol '' then hilarity ensued...

So yeah they always remind me of that and I find it quite funny. And one of the girl in our guild is always teasing and stuff... and once I called her ''EasyBee''. And it stayed! :D

lmao this started way back in Battlefield 1942, me and a friend were playing on El Alamien, and he was sniper on the germans, and i was an american, and so he is literally crouching like in the middle of the open, and i mow him down with a couple shots, and hes like HOW DID YOU SEE ME I WAS CROUCHING!!!!, and so now whenever i play any shooter game and i die, i say that

playing through final fantasy crystal chronicles with my friend doing the desert boss
we died in 1-2 hits by the bosses attacks. then around 5 minutes in we developed a running, hitting, healing tactic that worked for a while.
Then at half health the boss starts firing lasers.
gigantic screen engulfing make your tv lag and gamecube explode 1 hit KO lasers
so now whenever someone does a laser based anything we yell "NO F***KIN WAY.....IT HAS LASERS!!"

when me and my friend play soul calibur IV we slam our heads on the controllers.

I am the ARBITER! I am my own Faction!

My friend Greg came over to my house for the weekend and brought his X-Box 360 over with Halo 3. In multiplayer, player 2 plays as the Arbiter, and player one is Master Chief. We had to restart the game four times because Greg just HAD to be Master Chief, but he kept starting with me as Master Chief. Finally we got it fixed, and started tearing into the enemy. As we progressed through the story, we frequently had to stop shooting each other so we could actually engage the enemy. At one point Greg screamed at me after I ran my sword through his back, " Stop dammit! We are on a TEAM!"

I turned to him and said "I am the ARBITER, I am my own faction!" and I proceeded to run him through with my sword again as I said it.

I was playing Cold Winter in the prison yelling "FREEEEEEEEEEEEEEDDDDDDDDDDDOOOOOOOOOOOOOMM!!!!!!" So the joke stayed for anytime I play in a prison level on any sort.
Also I was playing Soul Reaver and I said, "ENERGY SWORD, BITCH!" So that also stayed for any time I play a game with an energy sword.

After the TF2 Meet the Sniper, whenever I'm sniping and I shoot a guy in the head I say "Boom, Headshot"

holy shit dude thats my name!!

and running gag well everytime me and my friends beat down people we yell, "STOP RESISTING ARREST!!"

also when my friend was congratulating me on a good kill, i was like, "uhh i dont know i couldnt hear his soul screaming, kinda dissapointing"

back in the N64 days my friend and i were absolutely insane crazy about Ocarina Of Time (still are :D)
when you are talking to the guy who gives you the fishing rod at the pond at lake hylia the game checks to see if you have a rumble pak
being a couple of broke twelve year olds we of course did not
if you lack the rumble pack the man at the counter says "oh well, no rumble for you"
at this point, for some reason, god only knows why, my friend screams at the top of his lungs "NO RUMBLE FOR YOU!!" like the soup nazi from seinfeld
now years later we still say it every time we talk about the game. or talk about anything really

When anything involving money or luck comes up we might use a phrase from Smash TV like "Good luck, you'll need it." or "Big money, big prizes. I love it!."

Also there's the classic Duke Nukem gags. Like walking around grunting and saying "Where is it?"