The shape made at the bottom of a mankini. Female versions include the "moose knuckle" or "camel toe".
by :j.ustin January 4, 2018

An expression used by Jim’s, to tell people to get fucked, or in reference to their ideas and how idiotic they sound.
by Fuckkkkkkboi August 2, 2022

When hitting a large jump (booter) mainly on skis there is a roller or knuckle that the jump sits on. If you hit that jump and land a little short that is called a case. But if you case the jump so hard that you are ejected from your skis and you thrust your body so hard against the landing that is called a Knuckle Fuck because you are fucking the knuckle.
by AbsorbedSpoon3 July 5, 2019

She was so loose I was able to stick my whole hand inside of her down to the forth knuckle she didn’t even make a noise
by Hugh J. Nus September 7, 2025

knuckles: If U don't know da wae, U have a gey
by hetsmikkelbakje January 11, 2018

Clifftopher: When is the English paper due
Danny: Wednesday
David: It's due Thursday
Danny: Oh yeah
Matthew: Way to go Douche Knuckle
Danny: Wednesday
David: It's due Thursday
Danny: Oh yeah
Matthew: Way to go Douche Knuckle
by Davidisabab May 3, 2017

The slits are pair of gloves used after by pregnant woman trying to kill the baby by fisting herself trying to pull the fetus
by thatonedudebwholovesboobs July 27, 2022
