brown knuckles

The failed act of fisting, due to lower intestinal blockage.

Jimmy want to fist his girl, but she was to full to engage, leaving Jimmy with a nasty case of the brown knuckles.

by Jimmy May 13, 2003

Toss Knuckles

To fight. Especially related to being good at fighting.

Fuck, we used to toss knuckles at the Brunny every week!

by Parkson Wrecks April 6, 2006

knuckle sex

Violent intercourse between two men who are defined as “knuckle heads”.

“Dude, today on my way to work I saw to knuckle heads having knuckle sex!”

by cats-are-whack October 6, 2017

knuckle novocaine

massage

After doing the dishes, Sally said she could really use a shot of knuckle novocaine.

by Dil Mirch December 2, 2010

Ugandan Knuckles

A Meme created by this YouTuber, Stahlsby, called, "YOU DO NOT KNOW THE WAY", messing around with Gregzilla 's Knuckles Model.
It was originally used for "Knuckles Sings". (This meme is the shit.)
This used to be a random VRChat gameplay, but many 8-year old kids are spreading to show "de wae"; the sign of the end of the world.
Like what the fuck man? What is wrong with you, like holy shit.
It's spreading EVERYWHERE. YouTube , Roblox , scratch.mit.edu , here, etc. I bet it'll migrate into some News shit.
Thank the lord you survived this through

"Ugandan Knuckles succs dicc."

by Oh Yeah, Mr. Krabs May 26, 2018

Denver Knuckle

A sexual act involving sticking ones fingers and or fist inside a persons anus while singing any John Denver classic while specifically "Leaving on a Jetplane".

Damn my chick gave me a crazy Denver knuckle in the plane bathroom.

by Doug Donna November 19, 2010

Knuckle Box

(N.) To be a royal screw up. To be the one to totally fuck things up for others and never be held accountable. To be a slacker and never get fired. One who is void of all intelligence to the point where breathing and blinking stress mental processing speeds.

(V.) Knuckle Boxing: The result of def: (N.). To screw everything up as a knucklebox would. Being unable to identify responsibilities and destroy all confidence in ability. To bitch up the works.

I can't believe B. Kieth knuckle boxed production again!

Bill, you knuckle box! Stop knuckle boxin this shit, BITCH!

Your bitch-ass knuckle box attitude is WEAK!

by jebediahfloyd October 6, 2006