Monkey Knuckle

When fisting someone's anus, and you pull your fist out covered in poop.

I can't believe they didn't clean themselves enough to prevent me from getting monkey knuckles.

by unrealism September 5, 2021

Knuckle Dip

An accidental action that occurs when butt wiping. Usually occurs when one unknowingly has clogged the toilet, wipes his arse, and accidentally touches the water with one's knuckles.

I didn't know the toilet got clogged after my courtesy flush, so when I wiped my ass, I did a knuckle dip.

by Paulkout December 7, 2020

Knuckle Symphony

1. The sound you hear after being punched repeatedly. This is usually accomplished by a bully of some sort.
2. The sound of a habitual knuckle-cracker, especially one who is capable of cracking many knuckles at once.

"Oh man, Jimmy's probably hearing a knuckle symphony right now! Lets call an ambulance."

"Hey, man, thanks for the knuckle symphony right there. Really appreciate it."

by phool23 December 16, 2009

Trunk Knuckle

Sticking a finger in someone's ass at least to the second knuckle of your finger of first knuckle of your thumb.

Hey, that dude really likes when his girl gives him a trunk knuckle around back while getting a blowie.

by Sarcastication January 25, 2013

Knuckle Custard

A busted load of jizz all over your fingers after rubbing one out.

Hand me my gak towel. I need to wipe up this knuckle custard.

I apparently didn’t wipe my hands good after jacking off this morning. I still got knuckle custard on them.

by Eaton Holgoode June 4, 2018

Knuckle Bunnies

A combination if a knuckle head and dumb bunny.

"The only people who would buy your cockamamie plan is a bunch "knuckle bunnies" on vacation in a volcano."

by Porticia September 4, 2013

mewtons knuckle

When you're wearing a thong, and your balls are so saggy that each ball falls onto both sides of the thong creating newton ball like balls, and you have someone put their tongue in between both balls, and swing the balls together like newton balls. :)

i'm going to Mewtons Knuckle you so hard your taste buds will never work the same.

by Throbin Hood June 13, 2016