Auto Attack – Your champions/hero will automatically attack.

Aggro – This is normally used when you get the enemy to focus on trying to attack you.

Aggressor – An aggressor in a gunfight is in motion to start the fight.

AD / Attack Damage – This normally examples an item or character. Attack damage is one type of damage that can be done to enemy champions. Others include Ability Power, True Damage etc.

AoE – Area of Effect

Arm Aiming– Primarily using one’s arm to move the mouse, instead of their wrist. 

Buff – Gain something to have a power spike, this could be increased damaged, speed or defense.

Bait– A type of play where one player engages in a fight only after their ally has been fragged.

Caster – Being the commentator for a game, normally there are two casters to a match.

Call out / Calls – Teammate communication about enemy locations or specific plays for the team to execute. 

CC / Crowd Control – This is an ability that normally does an area of affect and holds or slows a group in a position.

Cheese – Using easy tactic, or exploit in the game to get an advantage over the other team members.

CS / Creep Score – The amount of enemy minions that they have killed during that match.

Dive – Normally a team compensation that tactic is to rush the enemy team.

DPS – Damage per second

Farm – Kill minions or enemy champions to get stronger.

Feeding  – Doing a misplay and dying to the enemy champions

FF – Stands for finish fast, Normally this is when people want to quit the game as they believe it is a loss.

Flaming – This is harassing others players in the game.

FPS – First Person Shooter is a game genre, Games like counter strike global offence, Call of Duty.

Frag – Term for picking up a kill in some first person shooter games.

Gank – The act of surprising an opponent, typically coming in from the side or behind the opponent

GG – Stands for good game, It is normally used a a sportsmanship term when you have finished a game. It can be used as a sarcastic remark if the game didn’t go well.

Glass cannon – Champion/Hero that can deal out a lot of damage but is not able to take a lot of damage. Normally this is Attack damage characters.

GLHF – Good Luck Have Fun

Griefing – This is a term of abusing other players

Harass – This term is used to attack the other player in game.

Inting – This is a reference to “intentionally feeding”

Jungler – This is a champions that roam the map in MOBAs and and doesn’t have a fixed lane

Kappa – A term used for joking abusing someone online, It’s a way people have banter together

KDA – Kill, Death, Assist

Kiting – This is a term used to hit the enemy and then move to a position and shoot them again. Always staying out of the enemies attack range.

Last Hit – The last hit on a enemy player or enemy minion. This is normally the death kill.