1. Describes a fanatic who celebrates extensively when their favorite sports team is doing well but lives almost hermit-like when their sports team is getting dominated
2. Liking a collegiate team in one sport and always claiming them as your team but supporting them in another sport ONLY when they're doing well.
That nigger Randy Russell claims he's a University of Florida fan in general, but he's never supported anything but their football team, that is, until their basketball team made the NCAA tournament; what a fairweathered fan that cocksucking monkeyfucker is.