1 definition by Fall Out Girl #1 (The Original)
A fan of Fall Out Boy, she has to have as many posters as possible and all of their merchandise. Fall Out Girls are like a little cult that follow Fall Out Boy. they are true fans of the band, not just fans of Pete Wentz because he is the 'hawt' one. Because he isn't it's so obvious that Andy Hurley is.
by Fall Out Girl #1 (The Original) September 26, 2007