Top Definition
One who uses their fist to sexually penetrate another.
by lice April 23, 2003
1. One who sits on hard rubber fists (TOOMEY).
2. One who uses their fist in sex.
"Come here you fist fucker and thump my sweaty arse with your hardened fist"
by KnightstarExpress May 21, 2003
One who fistfucks.
You are one pathetic little fistfucker.
by i.e. June 16, 2007

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