look up any word, like sex:

1 definition by sox fanatic

 
1.

In sports, someone who shamelessly cheers for a particular team not because he likes them or follows them faithfully, but only because that particular team is the "popular" choice or has been or is the top team in their specific sport recently. When that team which bandwagoners follow falls from grace, they gleefully jump on the next teams bandwagon and cheer for that team.
James Simmons is the BIGGEST bandwagoner in the history of bandwagoners because he likes every sports team know to man! How dumb.
by sox fanatic October 26, 2008