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
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 a fat girl releases a fine mist of feces in a person or persons face.
“Todd got toad knuckled last weekend and now has pink eye.”
1.When you uncle fists you and your sibling at the same time.
2. When your uncle literally punches your ass hole into the next dimension.
"I hate my Uncles knuckles"