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.
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