Forth knuckle

The forth knuckle is an informal term for the wrist

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

Douche Knuckle

Someone who intentionally tells someone else wrong information

Clifftopher: When is the English paper due
Danny: Wednesday
David: It's due Thursday
Danny: Oh yeah
Matthew: Way to go Douche Knuckle

by Davidisabab May 3, 2017

Spit Knuckle

Eye contact is essential! Spit on the knuckles of each hand, take the clitoris in between the knuckles and slide both of the knuckles up and down gently but firmly.

Lady: Will you Spit Knuckle me, please?
Me: I thought you'd never ask!

by BranTrevArth January 22, 2022

Knuckle Fuck

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.

Dude, that guy hit the pro jump line and knuckle fucked the last jump.

by AbsorbedSpoon3 July 5, 2019

mayonnaise knuckle bump

When two bros go to knuckle bump each other and one has knowingly left ejaculation on his fist.

Ben: Hey brotha, what’s up? *offers knuckle forth for knuckle bump*

Chad: no man, I’m good, looks you got that mayonnaise knuckle bump there…

by JessaCali September 10, 2023

Suckle On My Knuckle

Something you say in an argument; meaning the person you are arguing with is not an intellectual and is genuinely not smart. When said, (depending on how weak they are) it will either kill you or turn you into a vegetable. For someone to defend against these powerful words, you must be of the highest grade of intellectual and practice the religion of Shreklenomly. People who practice in this religion are made immortal.

Pete: U is a dummy
You (the superior): Suckle On My Knuckle
Pete: *dies*

by George Humphery January 26, 2019

The blue knuckles

TheBlueKnuckles most known for being the bestfriend of SheLuvsManny the avatar creator and also a wild predator not safe for schools also well known for being Sams bitch

The Blue knuckles the well known predator if you see if please report to authoritys

by Nutsack444 April 21, 2022