Usually nothing, but when I'm knocked off my bike on MotoGP 06, I usually swear at the guy who knocked me off.

"Hax" because it's always "Hax" when you die!

"SON OF A FUCK"
"Dammit!"
"Oh. Damn."
"Well, that was expected."
"Saw that one coming..."
"*Sigh*"

Note how they get progressively more depressed.

Me:"............ffffffuck..."

Bah stupid rogues
Damn rogues
Man rogues are lame
FREAKING lame rogues
HA TAKE THAT YOU F....WHY ARE THERE ALWAYS MORE OF THEM?
why....why wont they let me live....
Sigh...

That about sums up what i say when i'm playing my priest in the battlegrounds in wow, Usually i decend down the list until i get to the bottom at which point i'll leave and go do something else.

in increasing order by how surprised i am.

"...boners."

"fuck me!"

"WTF" (pronounced phonetically, as "whit-tiff?")

lollipopz:
depends what im playing tbh.
been playing feeding frenzy lately and i tend to swear at the fish because they appear out of nowhere *rage*

I know the feeling.

you mother fuckin cock sucker

Versions of the word fuck.

"FUCK!" and slam my fist on the table
"FUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUCK!" when I fall

Amateurs...

-god DAMNIT¡¡¡
-FUUUUCK YOU
-woooah I didn't expect that
-fuck I was jsut about to HEADSHOT you¡¡¡
-fucking cheater
-fuck you hard bitch(when TKed)

AWWW SHIIIT!!

wii:damn this piece of shit! than i throw the remote at the tv(wii strap) and i get hit by the remote
xbox:oh fuck! this is a piece of crap on shit!and then i hit the tv
pc:damn this wolrd of warcraft! on the headphones i say fuck fuck fuck the graveyards!

General: Ah, son of a BITCH.
Accidental: Wait- ah, dammit.
Unknown cause: ...wait, what the fuck?
Self-inflicted: ... *slaps forehead* (Optional: "Dear GOD, that was stupid...")
TF2: FUCK YOU SNIPER

this is gonna suck

Fucksocks.

Simple yet effective.

CoDWaW Deaths (Veteran)
1st: Damn It
2nd: fuck, he had a buddy
3rd: YOU COULDN'T EVEN SEE ME GET THERE!!!
4th: THEY HAVE HEAT SEEKING NADE'S, I MEAN COME ON!
5th: *silence due to frustration*
6th: *silence due to controller breaking frustration*
7th: That has to be the most acurate Fukin machine gun I have ever seen.
8th: *Rage Quit*

Yeah, I may have a problem.

I REGRET NOTHING!

or maybe

Et tu, Brute?

"CHEAP!" or perhaps: "YOU CANNOT BE SERIOUS!"

eCookie for whoever gets the reference to the second.

"Who are you who can summon fire without flint and tinder!"

"There are those who call me...Tim"

I usually don't say anything, I just stare at the screen with steaming rage.
However when I was unfortunate enough to be facing sniping russian hackers(not from russia just spoke in a language that seemed like russian) in TF2, the words that most often escaped my mouth were, and I quote, "Fuck this shit!"

Great my face has balls in it now ( in an online deathmatch)
My face is a bullet magnet. * in any shooter)

I like to say "OH dear God just shitty tit fuck me!!!!"

"Gah"
"Sonofabitch"
"*Sigh*"
"...."

Usually in that order.

I don't scream anything...I stare open eyed in silence, then shout "I am the reincarnation fo Ghengis Khan...I.."

And then I die.

BULLSHIT!!

I only really shout at my games if some one else is playing, and if its a realistic shooter like R6V or Counterstrike. I really don't shout while I'm playing by myself.

I remain utterly silent and try again or respawn.

Aw fuck... I can't remember the last time I saved.

Normally some swear word or a "Noooo!", but if I remeber that I last saved 30 minutes prior to dieing, it's a long darth vader "Noooooooooooooooooooo!"

Shit that did not just happen YOU FSCKING SON OF A GAMEBOY GAME CARTAGE THAT'S IT I'M DONE *keeps playing*

I don't shout anything. I'm passive-aggressive. Instead, I let the rage seethe and build up until it culminates in a spectacular school shooting.

Freedom!....aw I re-spawned