Fanbag - girl who pretends to enjoy sports for the sole purpose of impressing a guy. Usually a girl with very little to offer and a guy who is probably gay and spends too much time in the football club showers.
James: Man, that Sarah gives me the shits always trying to watch the local sports game with us. How are we meant to make crude jokes and belch and fart with a girl around. She ruins game day.
Simon: Yeah. She is a real Fanbag. I think she is trying to get into Tony's pants.
James: Tony's gay brah. Haven't you seem him checking out your schlong in the showers after practice.
Simon: No way! I am showering in my board shorts from now on. Should we tell her Tony is gay so she fucks off?
James: Na man. It'll be funny when she finally figures it out. Then I can be her frustration fuck.
Simon: Yeah. She is a real Fanbag. I think she is trying to get into Tony's pants.
James: Tony's gay brah. Haven't you seem him checking out your schlong in the showers after practice.
Simon: No way! I am showering in my board shorts from now on. Should we tell her Tony is gay so she fucks off?
James: Na man. It'll be funny when she finally figures it out. Then I can be her frustration fuck.
by Lifestyle Specialist December 5, 2013
by Barboi June 17, 2017
Fans that push the limits of rooting for their respective teams, and make themselves look like a douche in the process.
"Man, did you see that guy who was drunk off his ass, a few seats above us?"
"The guy with the painted chest, who kept yelling the ENTIRE TIME?"
"Yeah, that guy was a total FanBag."
"The guy with the painted chest, who kept yelling the ENTIRE TIME?"
"Yeah, that guy was a total FanBag."
by Doughnutfingers December 20, 2012
by Mandem12567 April 10, 2019