1 definition by SeriouslyMrsA
When a person decides to route for a team, not because they are faithful fans, but because it is the popular thing to to. Perhaps the team is winning, their friends are fans or they may be the team closest to their favorite mall. Either way, when you have never watched that specific sport your entire life, then you start posting things, repeatedly, about how you're so happy they've won, yet you can't name one player on the team. You are a bandwagon fan.
Like, OMG, the Giants just won! That guy with the long hair threw the ball really fast, yay! Bandwagon fan!
by SeriouslyMrsA October 20, 2010