knuckling up

major shrinkage of a man's penis to the size of a finger between two knuckles

Wow it's cold out, I can barely see my dick, it must be knuckling up.

I don't have a micropenis, it's just knuckling up!

by Nasbaby December 17, 2010

tainted knuckles

Tainted knuckles occur when you reach between your legs to wipe your ass after a shit and your knuckles touch the vile soup in the toilet bowl or,heaven forbid,the turd itself.

Damn! I'm going to have to wash my hand.I got tainted knuckles.

by wolfbait51 October 23, 2011

Fuck Knuckle

A dickhead who likes to invade everyones privacy and will happily eat cock whenever is possible. He/She talks too much and needs to be sent to South Africa to drop him/herself on his/her own head. They talk out their ass most of the time.

Look at Jackson, he's a Fuck Knuckle. Send him to India to eat rubbish. Pog.

by Ol Meanings November 5, 2020

Knuckle Cluster

The name given to a gathering of lesbians, typically consisting of at least three.

Bro, did you go to that party last night?
Yeah, there were a ton of lesbians, it was a real knuckle cluster.

by chevyboyusa February 4, 2021

knuckle chucking

The act of aggressively masturbating.
To stroke your cock in a very enthusiastic way.

I could hear the dude in the next stall knuckle chucking .

Mark has been locked in his room knuckle chucking ever since getting home from the strippers.

by Fukucifer August 28, 2017

bloody knuckle

When 2 girls are each on their period and scissor each other.

Jen and Pam were both on the rag, and horned up for eachother, so they got into scissor position and bumped the bloody knuckle.

by KNuckle PUck April 24, 2010

Stink Knuckle

Yet another fine euphemism for the vagina.

I wouldn't fuck her stink knuckle with YOUR dick and blame it on Hugh Grant.

by Stink Knuckle September 25, 2007