baited like a jew: the art of leading a teammate towards the enemy, only to have him shot so that the enemy is exposed and you can pick them off.

spamming: consistently obtaining and using projectiles to the annoyance of every other player

afk: Away from Keyboard, used in PC gaming to address why the players character isnt doing anything

pwnt/pwned: Killing someone, epically

l33t: abbreviation of "elite", denoting excellence at the particular game

n00b: originally anyone under the level of 15 on runescape, now used to describe anyone whos shit at the particular game.

Camping: hiding in one spot and shooting everyone. Met with hatred from other players, who in turn do it themselves.

RTFM: Read The Fucking Manual. Answer given to players who ask how to perform certain actions.

Haxxor: someone who changes the coding of the game so that they have an advantage.

ORLY?!: abbreviation of "oh really?", usually used when someone points out the obvious.

Speed-Run: Beating the single player mode as fast as possible

Teabagging: the ancient practice of crouching up and down on a persons dead corpse, simulating the sexual move of teabagging, as the dead player watches on killcam. Brings hillarious consequences.

Troll: people who start flame wars for no reason.

Flame war: war of words between two or more players, often starting with a "your mother" joke. If done correctly the inniciator is congratulated, if not, he is riddiculed; but always ends in laughter from every other player.

RROD: the Red Ring Of Death, a symbol which appears on an Xbox360 when it encounters a massive hardware failure. Another reason why xboxs fucking suck.

Blue screen: abbreviation of the Blue Screen of Death, the Windows PC equivalent of the RROD.

Bunny Hopping: jumping around the entire map, in an effort to screw up everyone elses internet, and make you a harder target to hit.

GG: abbreviation of Good Game

Walling: shooting someone through a wall, seen as cheating because the wall is ment as cover.