Fudge knuckle

When you put your finger up a butt during sex/foreplay, and you go a little too deep, resulting in a bit of poo on your knuckle.

Dude1: how'd it go with that chick last night?
Dude2: not bad. She wanted me to finger blast her butthole, so I did, but I got a little over zealous and ended up with a fudge knuckle.
Dude1: oh man. that's fucked up!
Dude2: yeah, but she ended up riding me all night so....

by Huge hammer69 June 25, 2021

Buffalo Knuckle

Typically occurs in men who wear skinny pants and their genitals are bunched together giving the impression of a buffalos knuckle. Male camel toe.

His jeans were so tight I could see his buffalo knuckle.

by Skeletor85 August 1, 2018

Barf Knuckle

The knuckle in which you use to barf with. Normally used by people who are anorexic or just need to blow chunks.

Dude One: "Man, have you seen that chicks barf knuckle?"
Dude Two: "Yeah man, she needs to tone it down, it is starting to callus"
Dude One: "Thats gross man."

by Lucid Samsara Phunkylove May 13, 2010

Poot Knuckle

When a girls pants are up her butt and it looks like her ass is eating her pants. Also back side moose knuckle.

Damn look at Ginna's Poot Knuckle. Her ass must be starving.

by Gellybean September 14, 2017

Knuckle under

To not put up with, tolerate or endure.

"He is was looked at in awe for his disagreement to knuckle under"

by justjae1114 February 11, 2022

Knuckle-Bastards

Semen discharged from an act of self-gratification, usually left to dribble over the thumb of the active hand.

I was in the bathroom after your mum took a shit, so I thought I'd use that time to fire off some knuckle-bastards.

by FormerSmurf April 7, 2015

spud knuckle

A dog that is 15 pounds, male and a cross between a Chihuahua and a Beagle. A nickname for a spud knuckle is 'spuds'. To be a spud knuckle the dog must qualify all standards. Spud Knuckles often have a 'Wrinkly' or 'Crinkly' face.

I was walking my spud knuckle today. I threw a stick and little spuds brought it back like a good doggy.

by Thisnamecantpossiblybeenused May 13, 2016