Skipper’s Knuckle

When your ass is being fingered so vigorously and intensely by a partner with fat, sausage fingers that you burst a vessel/hemorrhoid.

I gave Roger a skipper’s knuckle last night.

by Eaton Holgoode April 19, 2018

Knuckle fudge

The mess left on the top your hand after grazing the peak of the monster deuce you left in the toilet.

Yep, I got this knuckle fudge from mountain scraping

by Jason Forrester May 17, 2021

Stinky Knuckles

A game where the winner is established by how many fingers they can fit knuckle deep in another person's rear.

(In party setting)
Man 1: "Who's trying to catch a game of Stinky Knuckles"?
Man 2: "I'm down! I haven't lost a game yet"

by Bum Digger November 1, 2019

Knuckle Mustard

The residue left on your finger when your hand strikes a turd as you reach back to wipe your heiney.

My hand hit the water when I reached back to wipe my ass and came up with knuckle mustard

by manofsteel249 January 25, 2011

Bust Knuckles

Male masturbation. Jacking off. A vigorous wank.

I’ll be there by 7:30. Just need to run home to shit, Shower, shave and bust knuckles.

I just started to bust knuckles when my aunt walked in.

I spent the weekend on porn hub and busting knuckles.

by Dick Onchin October 18, 2020

knuckled down

to physically beat someone down with your fists

"...there's a good chance ya ass is either gon' get shot, stabbed, or knuckled down, one out of the three." - Prodigy of Mobb Deep (The Infamous Prelude)

by GSTWN May 28, 2007

Uganda Knuckles

One of the most dangerous species belonging to the Uganda Knuckle Tribe. Their objective is to find a queen and force people to learn "de wae". When disturbed, Uganda Knuckles will react with defense by spitting and using their tongues to lure the threats away.

Uganda Knuckle: Do you want to know de wae?
Person 1: No
Uganda Knuckles: Spit on de fake queen

by asiankid529 May 15, 2018