Definitions by Reptaaar

knuckslut 

a) a person who fist-bumps multiple partners in rapid succession

b) someone who sees two people about to pound it and decides to quickly bump their fist into both of theirs, making for a three-way.

Kristen and Carly just pounded it. It was girl on girl knuckslut action!

She's such a knuckslut. She gave knucks to everyone in the room before she left.

knuckslut by Reptaaar June 29, 2010