jason: how was the dance yesterday?  dennis: it was horrible, fist pumpers were blocking my girl and me  jason: that sucks
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
"jason: how was the dance yesterday?  dennis: it was horrible, fist pumpers were blocking my girl and me  jason: that sucks" What is the definition of "fist pumpers"?