When you're in bed with your man and he lodges his entire fist into your cooch. he then squirms his hand around until he sees his knuckles through your belly. Once seen they instantly cum.
Ronald: Did you hear? Samantha got knuckle clustered by David
Arnold: Really?
Ronald: Yeah. She died mid-way and he sat there cumming. He soiled the bed sheets completely white
Arnold: Damn. It was good when I railed her ya'know?
when you and your bestfriend get a handjob from the same girl
me and the homie got a habdjob from the same chick so now that makes us knuckle shuffle bros now
(Noun) Formal definition for fisting
"Hey dude, no homo, but could you give me a 4 knuckle feel good?"
"Do I know you?"
When you smoke a bowl and pack the bowl down with your finger then finger a girl with your resin finger
I smoked a fat one and gave this girl a smokey moose knuckle
When one commits the act of fappage on one's own beastly piece.
Dude: Hey, you wanna hang out?
Dude (other): Nah, I'm pumping knuckles.
A sexual act when a fist is inserted inside a women's vagina during her menstrual cycle.
Jason, "Let's have some fun tonight."
Kyra, "Sorry babe, my cycle is on this week."
Jason, "That's okay. I'll raspberry knuckle you like last time."
to fuck the shit out of someones knuckles
i just finished knuckle banging cody and shaine so hard