One who is a gangsta and has very little or no teeth. A Fat Andy is also known to drink large amounts of alcohol "to his/her face". Fat Andys are also sexually attracted to pudding. Fat Andys can live anywhere from the suburbs to in a car when experiencing "hard times".
Johnny Jerk off: Hey whose that guy drinkin a 60 to his face and eatin all that puddin'?
Crusty Bitch: Oh dats a Fat Andy.