Knuckle Up

When two men choose to engage in mutual masturbation, implementing a "thumb war" grip and jerking themselves off simultaneously, locked at the knuckles.

Since he had a girlfriend, the young man decided to knuckle up with a buddy.

by DaXymbiont February 7, 2018

cuban knuckles

A sexual act between two fisting hot lesbian Cuban which involves 5 cigars and Fidel Castro

Bro have you seen that video where those two girls give each other Cuban Knuckles .... Its hot ASF

by Dicdaily January 11, 2018

White knuckle queer

A gay rolloff driver Who likes to fist other man.

The trash man was such a white knuckle queer

by Minati3 June 7, 2021

knuckle brother

the tightest bond two can have...typically occurs when two friends simultaneously break their knuckles. if you mess with one, you mess with both.

“What are those god damn knuckle brothers up to this time?”

by greenryan420 February 27, 2018

Throwing one over the knuckles

When a male is masturbating and the jizz runs down over his knuckles after he has blown his load.

Mike needed half a box of Kleenex after throwing one over the knuckles.

by Meromero May 5, 2017

wetting the knuckle

female masterbation

she is in there wetting the knuckle again

by turtlesac November 24, 2016

fuck knuckle

A slang term for a dumb mother fucker who really does not understand they are a dumb mother fucker.

After a lame conversation I had to say, “He is such a fuck knuckle”.

by Wayne Schlinger & Kevski September 23, 2021