Fair weather fan

[Rihanna]

A fan of a sports team who only shows support when the team is doing well. During hard times they usually [bandwagon] other teams. They basically have no real loyalty to the team, but still manage to get better seats than you at the game. Strangely they mysteriously vanish at the first sign of trouble.

[Justin Bieber]

Certain people who only watch a sports team when said sports team is having a winning season.

[Sarah]

New Dats. A sickening majority of 2009-2010 Saints Fans who couldnt stand the saints or the NFL for most of the season. The last 8 weeks this fan has bought 10 shirts, a jersey and hotel room in the quarter to proclaim how much they love the saints and leech off the joy felt by the who dats. In other words they are about as cool as a fanny pack.

[Mark Zuckerberg]

People who only support sports teams when they are doing well ie when the weather is fair. If their team is losing, they dont claim to be a fan, but when their team is winning, they are obnoxious to the highest degree.