Sloth knuckle 

Male cameltoe. A man who wears his pants pulled up to high, outling his package.

He wears his pants so high you can see his sloth knuckle!

Sloth knuckle by Lees def April 29, 2010

buffer knuckle

The act of spit lubing your index knuckle and then insert it into an anus.

"Tell uncle Billy to stop giving me buffer knuckles."

buffer knuckle by Howie Feltersnatch March 4, 2015

moose-knuckle 

black box sith twat black beaver punani African vagina, opposite of camel-toe.

Like throwing a hotdog down a hallway, Shaniquas moose-knuckle was a roaring gaping chasm.

moose-knuckle by irc_snEk May 28, 2018

Split knuckle 

A Vagina that you can clearly tell has been used to store drugs. Most commonly crack-cocaine

Yo man you can see that girls got split knuckle. I bet she’s had hella drugs in that cooch

Split knuckle by The Baby Whale January 25, 2019

Flap Knuckle 

An extremely engorged clitoris quivering on an aroused state.

I was hitting it from behind while she tugged on her flap knuckle.

I could tell from the wet spot on her panties that her flap knuckle was ready for a flicking.

Flap Knuckle by Dick Onchin December 24, 2020

bryan adams knuckle 

Synonym for moose knuckle; The outline of a mans genitals through his trousers.

That cyclist just showed his Bryan Adams Knuckle to the whole world.

bryan adams knuckle by joeyjoejo1200 May 13, 2010

fart knuckle 

the fart resulting from intense fist knuckle action. The fart's intensity and smell is equal to the depth and size of the knuckles.

a. wow his hands were so big, i got some gnarly fart knuckles.

b.guy: dude did you just fart knuckle?

other guy: yes, yes i did.

guy:smells like he knew what he was doing.

fart knuckle by JuniorBaconCheeseBelly July 13, 2010