knuckle sandwich

To punch someone in the mouth to shut them up.

Tom: you're just jelous of me cuz I slept with your girl and you didn't. And y'know what? she liked it so much that I...
Edd: IF YOU DON'T SHUT UP, I'LL GIVE YOU A KNUCKLE SANDWICH

by LesleyDianna April 30, 2012

Penis Knuckle

1. When the penis is folded over in your pants and protrudes through revealing a short nub to be seen by all, giving you that uncomfortable feeling that you cannot fix when you are in public.

2. A lazy person who is dumb founded to everything around him/her.

After the awkward silence, he said, "Why you gotta be a penis knuckle?"

You're a penis knuckle!

by CBizkit84S March 8, 2013

Knuckle Up

To prepare to kick another's ass, getting prepared to engage in fisticuffs

If you get up in my grille, you best knuckle up, motherfucker

by stefanali pops September 26, 2005

Knuckle-head McSpazatron

A Knuckle-head McSpazatron is a very, very silly person. Is used as an insult.

First use was recorded in the SpongeBob SquarePants movie.

'You're a Knuckle-head McSpazatron!'

by RowHoe May 22, 2008

knuck knuck

A racial term used towards African Americans to skirt around the use of the 'N word'. Used by cowards who want to get away with racial insensitivity and use it as a way to justify themselves so they can still sleep at night. Originates from the term white slave owners would use to reference the black slaves they forced into bare knuckle brawls with each other for entertainment.

Racist Guy: Can't believe that knuck knuck took my lunch money!
Racially Tolerant Guy: Dude, you can't say that! That is incredibly racist!
Racist Guy: I am so sorry. I did not realize the connotations that phrase holds. I will strive to be better. Thank you for educating me.

by JustOneRealCoolDude July 9, 2020

knuckslut

a) a person who fist-bumps multiple partners in rapid succession

b) someone who sees two people about to pound it and decides to quickly bump their fist into both of theirs, making for a three-way.

Kristen and Carly just pounded it. It was girl on girl knuckslut action!

She's such a knuckslut. She gave knucks to everyone in the room before she left.

by Reptaaar June 29, 2010

Fag Knuckle

A. When you stick your hand up a person's ass and lick your hand afterwords.

B. A dumb, ignorant, piece of crap, that jerks it to videos of bunnies and rainbows.

C. Bert

Why whould you do that? You're such a "Fag Knuckle."

Bert is a fag knuckle.

by HAHAHHAHAHA1234 April 21, 2010