knuckle beefing 

To violently finger fuck a girl or to ultimately become knuckle deep in her vagina while furiously finger fucking.

Dude! I was knuckle beefing that girl from the party last night so hard.

knuckle beefing by blowjobjack December 28, 2019

knuckle children 

semen

"I jacked off in my hand and made a fistful of knuckle children"

knuckle children by marblecakealsothegame13 September 28, 2020

knuckle feet

A foot of a ballerina or someone who has gangrene

“damn, that girl got knuckle feet “

knuckle feet by Dingle chalk October 9, 2021

Knuckle Draggerz 

Large group of badass military grunts.
Usually consists of SOCOM or Infantry men that are mostly bearded and smell of gunpowder, motorcycle engines, sex and booze.

You see that pack of burly hardass mofos ride past here in formation earlier!?

You could hear them from a mile away.
They were a bunch of Knuckle Draggerz that’s for sure.

Knuckle Draggerz by 03bangbang February 7, 2022

knuckle shuffle his piss pump 

A hand job

I like him so much o the point I want to knuckle shuffle his piss pump

knuckle shuffle his piss pump by lil spooky March 12, 2022

knuckle sando 

A punch in a the mouth!

G1: I ran into my ex the other day
G2: ohh, did you give him a knuckle sando?

knuckle sando by Jaydesai June 11, 2023

Crusty Knuckle 

After someone has fisted another person, they leave their hand uncleaned for a while. The fluids, dry and harden on the hand, forming a Crusty Knuckle, or Crusty Knuckles depending on the severity.

Jasmin fisted Leeroy. She left her hand overnight an the shit hardened. In the morning her hand had turned into a Crusty Knuckle.

Crusty Knuckle by L.Jenkins January 11, 2012