noun
Aggravation; bother.
(chiefly UK, Australia) Aggressive behaviour; loud, intimidating behaviour that convincingly threatens violence without necessarily actually becoming violent.
(gaming) A measure of a player's level of belligerence.
(gaming) Hostile attention from an enemy that should target players with better defenses.
adjective
(Australia, New Zealand, slang) Angry.
(colloquial) Aggressive; inclined to attack (including, in video games, without having first been attacked).
(British, US, slang) Hardcore, aggressive.
verb
(gaming, intransitive) To become aggressive towards the player's character.
(gaming, transitive) To cause (a non-player character) to become aggressive towards the player's character.