Used on MMORPG (Massively Multiplayer Online Role Playing Game, e.g., EverQuest, Dark Age of Camelot) boards and IRC's. Usually used when someone declares they are leaving the game with certain reasons, and the people who reply using this dont care.
GQLLFM == "Good, Quit, Less Lag For Me"
Person 1: People are leaving EverQuest because Sony doesn't care about the players.
Person 2: GQLLFM! I want to play a game not make one!