puppy knuckle 

the smallest penis in existence, couldnt hit a g spot even going balls deep.

dave: yo heard about your fuck game breh
al: whachu mean
dave: you got a straight puppy knuckle for a dick mayne

puppy knuckle by deuces mcshmitiggle July 29, 2014

Pork Knuckle 

The overspill of an obese womans labyia and stomach fat, which obstructs vaginal intercourses.

Had to push back a hefty pork knuckle to plow that whales meat curtains.

Pork Knuckle by Mogn January 18, 2017

meat knuckle 

vagina

chris was poundin on that meat knuckle last night.

meat knuckle by upsetguy February 4, 2010

monkey knuckle 

Like a camel toe but much smaller often referred to as a shetland vagina

Did you see her monkey knuckle? It was the smallest vagina I've ever seen.

monkey knuckle by lunchbox#1 July 13, 2012

Fart Knuckle 

It's reference is to someone who is dumb as a bag of hammers and/or is dense. It's when your knuckle smells like your ass because your finger is shoved up there.

This douche fluid we are working with is a fart knuckle

Fart Knuckle by wolfhound61 October 3, 2017

Reverse Pig Knuckle 

The act of fisting oneself with the right hand while using the computer for various uses.

Most common:

Playing Fantasy Football
Chatting
Facebook Profile Stalking

"Jack couldn't wait to get home and sit on his reverse pig knuckle and check his fantasy football stats. It was a really hard day at work today"

Reverse Pig Knuckle by Call2CifUqualify August 19, 2009

horse knuckle 

An extremely large bulge protruding from the female genital area while she is wearing pants. Also see camel toe.

This nasty chick at the bar had a really big horse knuckle and i couldnt stop staring at it.

horse knuckle by Andrew Stump September 6, 2005