The act of inserting one's fist into another one's anus or vagina, and fist pumping like Pauly D, Mike, Vinny, or Ron off of MTV's hit reality show "Jersey Shore".
Jack: "You have fun last night?"
Ryan: "Hell yeahh! That girl loved it when I was Jersey Shore Fisting her!"
Ryan: "Hell yeahh! That girl loved it when I was Jersey Shore Fisting her!"
by Undeader25 October 27, 2010
Get the Jersey Shore Fistingmug. When you fist a girl and get your fist nice and deep, then picking her up off the bed with one arm you fist pump her whole body in the air
by Jizzleman34 December 19, 2009
Get the Jersey Shore Fist Pumpmug. by BaddestQueen018 August 3, 2017
Get the Jersey shore fist pumpmug.