Someone who never stays true to the same teams. They're always fans of the best teams.
Ryan: Man I love watching my teams dominate.
Jared: Who are your teams?
Ryan: The Tampa Bay Rays, Boston Celtics, & NY Giants.
Jared: WTF, last year your teams were the Yankees, LA Lakers, & NE Patriots.
Ryan: What can I say, I'm a front-runner fan. The Yankees aren't gonna make the playoffs, the Lakers lost last year in the Finals, & Tom Brady is out for the season.
Jared: This conversation's over.