knuckle boom 

A method of vaginal stimulation involving a clenched fist and a bucket of lube.

I have her the ole knuckle boom last night. She came almost immediately!

knuckle boom by RammWolf April 18, 2017

Knuckle Fucking 

Sticking a finger knuckle deep in a mans ass.

Tom’s wife was knuckle fucking him last night.

Knuckle Fucking by Mr eason August 13, 2018

Knuckle Shit

To have a moment or point in your life when you are considered an idiot. A.K.A. dumb ass. Comes from the 2 terms knuckle head, and dumb shit.

1. I can't believe you didn't shift out of first gear after proceeding 100 miles an hour, you're a knuckle shit!

2. Josh-"Did you guys drill the hole out for the waterfall bolts on tower 13 yet?"
Bobert-"No, not yet."
Josh-"Well, now you've gotta go drill that hole out even though I told Randy I would do it, you fuckin' knuckle shit!"

Knuckle Shit by The man from the lene November 29, 2007

Knuckle Touch 

A touch of the knuckles to smooth something really douchy that you've done.

Friend #1: (Hits his friend really hard)
Friend #2: What the fuck man.
Friend #1: That was for earlier, knuckle touch?
Friend #2: (Touches knuckle) Yeah, its all good.

Knuckle Touch by The Jock 17 January 20, 2011

knuckle dragger 

Military slang for Military Police

Don't speed past the Brigade HQ, the knuckle draggers are out pinging people with their radars.

knuckle dragger by Digrar April 23, 2006

knuckle dragger 

Stereotypical and racially prejudice term referring to people of African decent. Stems from the idea of these people having long, monkey like arms.

This is the first time a knuckle dragger has showed up at a party in this neighborhood.

knuckle dragger by Zach March 14, 2005

knuckle children 

The load you blow from masturbating.

Jesus looked so hot in that robe that I felt the need to fire off some knuckle children after my family left for work.

knuckle children by mikethecoder September 20, 2005