LMAO
Laughing My Ass Off. This abbreviation is typically used online, specially during chatrooms or ingame chatting. Its usage has became so usual that even while greeting, someone may respond LMAO.
John: Hello Ben, how have you been? Ben: LMAO Player1: Omg, you fucking retarded stop tk. Player2: LMAO, stfu you cunt.
By homosapient