Gank

A slang word that means to steal or take something; often stated informally and not meant as a criminal act.

Gank is when multiple players gang up on a single player in a game and kill him. Players may do it for strategic purposes and/or to just irritate the player, aka griefing.

Gank comes from the combination of "gang" and "kill," and comes from the age-old "strength in numbers" strategy that transcends competitive games. However, it didn't receive the "gank" label until the early-2000s when online gaming began to increase in popularity.

It may be performed in any multiplayer game but is commonly used in MOBA games like Dota 2 and League of Legends (LoL). It is also done in MMORPG games like World of Warcraft (WoW).

While it is a useful strategy for prevailing in matches, some players do it just to make other players angry. Kind of like older brothers ganging up on the youngest sibling.