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5.
Men of questionable sexual orientation. He frequently sports large hair and an orange-glo tan. He usually wears colored printed t-shirts and pumps his fists like a spastic jackass while listening to techno music. Often behaving like a dumb moronic drunk stumbling across the floor having no game.
Ew Debbie lets go to another club this one is filled with fist pumpers.
by cocoa puff August 22, 2010
 
1.
Juice heads from Staten Island who go to clubs on the jersey shore and dance with each other, not girls, while pumping their fists to bad techno. They typically wear headbands and sleeveless shirts that are two sizes too small.
I dropped my beer from laughing so hard when I looked at the dance floor and saw only a bunch of fist pumpers.
by Vin-Diesel August 04, 2006
 
2.
annoying ass people at dances, all they do is fist pump and get in other peoples way when they are trying to get their twerk on. they all also called anti-twerkers. sometimes try to start a train when other people are too busy twerking.
Jason: How was the dance yesterday?

Dennis: It was horrible, fist pumpers were blocking my girl and me

Jason: That sucks. Well I was throwing my hands in the air and grinding on a girl while some guy was trying grind on me

Dennis: Dude, I think you were the fist pumper

Jason:..........
by "Brian Bui" December 17, 2012
 
3.
Juice heads from Staten Island who go to clubs on the jersey shore (Bamboo, Deejays, etc.) and dance with each other, not girls, while pumping their fists to bad techno. They typically wear headbands and sleeveless shirts that are two sizes too small.
Danielle: Hey Jen, do you want to go to Bamboo?
Jen: No, I want to actually dance with a guy, there are only fist pumpers at Bamboo on saturday nights.
by Vin-Diesel August 03, 2006
 
4.
guy who masturbates frequently, complete asshole
Guy: John still doesn't have a girlfriend?

Other Guy: Yea, he's becoming a real fist pumper.
by sillysallie July 21, 2010