1 definition by The WizzaRrd

When two people are both fisting a girl at the same time. One fisting the vagina and the other fisting the arsehole. While both are fisting the fists hit each other as a form of a bump. 'Fist Bump'
Guy 1: Hey, how did it go with Ashlee?

Guy 2: Me and Steve totally fist bumped her last night, she's such a slut!
by The WizzaRrd August 31, 2011
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