knuckle rule 

the rule which state that you are able to date someone 2 years older or younger (2 knuckles from the middle both ways) without consiquence

Dude1: yo last night i hooked up with this hot chick from collage
Dude2: u mean the blonde one? shes 2 years older then you!
Dude1: knuckle rule
Dude2:good point, nice job last night

knuckle rule by Jesse Mitchell January 12, 2008

knucklehole 

means fisting in some country's

i wanna knucklehole the shit outta you

knucklehole by aswdesda February 23, 2009

knuckley 

sexual favors in exchange for weed

"dude im so drunk lets knuckley, ive got some fire weeeeeed!"

knuckley by s. claws June 27, 2009

knuckle muncher 

when someones hand gets so far up someones pussy

Sebastian:my fingers got well far up your pussy when i was fingering you betty

betty: i know my pussy must be a knuckle muncher

knuckle muncher by toe licker August 17, 2010

knucklebone 

Another word for fisting

Jeff: Maria has let every guy in our grade knucklebone her

George: What a slut

knucklebone by LeManssssssss3 October 15, 2014

Knuckle dick 

A penis that has "popped" or made a popping sound similar to knuckles popping after being thrusted in too hard, resulting in a bent penis and pain

Dude the other night I was with my girl and went too hard and got a knuckle dick.

Knuckle dick by Dr. F the mad scientist December 22, 2015

knuckle chucks 

1. Noun. The male ejaculate by way of manual masterbation.
2.Noun. Derogatory name give to person in place of "jerk offs." Commonly used in military environments where swearing or more conventional insults are discouraged.

"Listen here you little knuckle chucks. You best not be messing things up!"

knuckle chucks by Makinnak January 13, 2017