Any person that plays Disgaea
, a strategy RPG published by Nippon Ichi Software, or any game that resembles Disgaea, especially those with trite anime cliches and generic character designs. Coincidentally, most of these games are also published by Nippon Ichi Software.
An offshoot of the term Gaiafag
That Disgaeafag has sunk over 300 hours into that lame-ass game! Perhaps he should go outside once in a while.