by Trevor Pike February 19, 2006
Get the knuckle fuckingmug. to put it simply, fisting.
by holla at yall July 27, 2009
Get the knuckle fuckmug. When a guy's dick is soft so he squeezes the base and tries to fuck till its hard. While holding the base he hit's the other person repeatedly with his knuckles.
Well if it goes soft we have to take a break. I hate when a guy tries to knuckle fuck me. I end up with bruses.
by Wonder77 December 25, 2016
Get the Knuckle fuckmug. by L1feLus7 December 3, 2009
Get the Knuckle-fuckmug. by Mr eason August 13, 2018
Get the Knuckle Fuckingmug. jerking off is the way you knuckle fuck. just that knuckle fucking is the new up to beat way to speak
by Daniel Coy January 19, 2009
Get the knuckle fuckingmug. johnny t-bagged my roommate and then left with the pizza so when he came back looking to borrow some money, i knuckle fucked the shit out of his face
by diego delavega June 30, 2006
Get the knuckle fuckmug.