Ace: When one man standing in a Search and Destroy game kills every single enemy without help.
Aimbot: This is when people automatically aim at enemies and shoot them.
AR: Using an Assault Rifle to cover a spot.
AFC: Away from controller.
Ass Clapper: Older term used in MW2 to describe an AC130.

Baby Monitor: A Word for the Heartbeat Sensor.
Boosting: When players feed head shots and camos to another user willingly.
BRB: Be right back.
BK: Bad Kid.
Bravo: The B Flag For Domination
Bankshot: The act of of killing a player by bouncing a tomahawk
BK Scrandy: The scrandy includes both random and scrub.
Bill: Hitting a trickshot before hitting ground for final killcam.
Black Hat: Gameboy advance.

Camping: This is when a player camps in a corner or a building
Cheating:unfair techniques to gain an advantage, such as hacking.
Collateral: When the player gets multiple kills with a single sniper rifle shot.
Crawler: A zombie who has had its legs blown off by an explosion.
Charlie: The "C" flag placed on any given map in Domination.
Callout's:When you name a persific place on the map to tell your friends where the ememy is near.
Choob: Skilled player who intentionally plays badly.

Dolphin Dive: Holding in B.
Dropshot:Going prone as soon as you see the enemy.
Dummy/Dummying: Its where trickshotters get someone on the enemy team to stand in a certain spot.

EMP: Electro-magnetic pulse.

Fanboy: Copying every things clan do eg FaZe.
FBTTD: Flash bang through the door.
Full Man: Playing with 6 or 8 friends.

GOML: Get On My Level.
GG: 'Good game'.
GWK: Game winning kill.
GB: Game Battles.

Hacker:Someone who alters the game's code.
Head glitching: The act of using shoulder height cover to give a full view of target.
Halo Jumping: This is were they keep jumping will getting shot aat

IRL: In Real Life.
IW: Infinity Ward.
Inv: Someone wants you to invite them to your game.

Jumpshot: Jumping in the air while shooting at the enemy.
Jug: A term used for the Juggernog perk in Zombies.

K.I.A.: Killed in action.
Killsteal: Killing someone that someone else was already trying to kill.
K/D Whore: A player that focuses solely on their kill to death ratio during objective based games.
KD or K/D: Kill to death ratio.
Killchain: 8 Rapid Kills.

Lag: Refers to either framerate lag or network lag.
Longshot: Killing a player over a long distance.
LMG: Light Machine Gun.
Leftover: A clip/trickshot that isn't up to standard with todays trickshoting clans.

Mad: Raging Gamer
M.I.A.: Missing in action.
Mic : Short for microphone.
Modded controller: A controller with a trigger that is modified to simulate rapid presses.
MLG: Major League Gaming.
MOTD: Message of the day.

Nade: Short for grenade.
No-Scope: Getting a kill with a sniper rifle by hip-firing.
Nerf: A reduction in the effectiveness of an item as the result of a patch.
Noob tube: grenade launchers.
Ninja Defuse: Act of defusing a bomb a few seconds after an enemy plants it in Search and Destroy or Demo.

OMA: One Man Army.
Overpowered: A weapon, perk, piece of equipment or another in-game item that gives a player a significant advantage over other weapons.
OBJ: Which is Objective playing.

Point Whore: The act of maximizing points obtained in Zombies mode or Hardpoint .
Panic Knife: purposely knifing an enemy extremely close to the player without thought.
Pancake: Using the bouncing betty.
Party Vests: The ballistic vests.

Quad: Four kills in quick succession.
Quickscoping: Quickly aiming down your scope to kill a player.

Ragequit: Ending or leaving a game mid-way because of anger toward the game or current situation.
Reload cancel: Cancelling a reload by momentarily sprinting, quickly switching weapons or meleeing before the animation is completed.
Randy: Someone who is a random.
Runner: For Flag Caps.

Spray & Pray: To aimlessly auto fire.
Stumpy: Nickname for zombies.
Spawnkill: To kill a player as they spawn or immediately spawned.
Scrim: A friendly casual match against another clan.
Scrub: Someone who is bad at the game.
Sponger: Someone who absorbs lots of bullets but still kills you.
Setup/Setting:The trickshotters try hit trickshots on them whilst the person is stood still.

Tryhard: A term used to describe a player who highly attempts to do well, usually with the help of the best loadout available.
TI: Tactical Insertion.
Trickshot: Making killcams look nice by hitting shots.
Teabag: Quickly pressing B, and it while over the dead bodys face.
Turtling: Playing defensively.
TK: Team Kill.

UotM: User of the Month.
UTP: User Treatment Policy.
Under Rated: Someone who is really good but is not noticed by anyone.
Usable: A clip/trickshot that is up to standard with todays trickshotting clans.

Vaccum: Using the Paralyzer in zombies

Wall Bang: The act of getting a bullet penetration kill.
W.I.A.: Wounded in action.
Wander: Not Going for the objective.
WOOT: We own the other team

XBL: Xbox Live.
XP: Experience Points, a method of earning points through the game to level up.

Zone: Being in the Objective.
Zombies: Gameode in which you kill loads of dead.