When a line of people that were waiting for a train to finally end fist pump out the windows of their cars in celebration of the caboose passing so they can now cross the tracks. Started on July 3, 2010 in Olmsted Falls, Ohio.
The caboose of a train passes as the train ends. The people waiting to cross the tracks celebrate by Caboose Fist Pumping out their carwindows.
The sexual act of pulling your arm back and punching your fist up your partners anus in a celebratory manner. The arm must be inserted up to the elbow or it is only considered a Bill Murray swirly. This is usually accompanied by a reach around.
Yo bro. I gave Jenna the a Tiger Fist Pump last night after we finished the Panamanian Petting Z
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