knucklefucker 5000

A dildo, preferably large and black attached to some rubber (or brass if you're that hardcore) knuckles.

"Man you should have scene that crazy bitch's closet. It was full of knucklefucker 5000's !!

by CanadianSyrupSperm December 9, 2017

knucklephuck

A knucklephuck is someone who jacks off with a tightly closed fist. Seemingly strangling the penis. It is also slang for guys who think or seem to think with the smaller head.

Will you just look at those 2 knucklephucks? They don't have a clue as to what they are talking about.

by MrMJaye2U September 29, 2018

knuckle child

Sperm. The result of buffing one's bishop.

I spilled many a knuckle child watching porn last night

by thepipe November 15, 2018

Knuckle-Stuff

The action of inserting a closed fist into the vaginal or anal region. (more commonly known as fisting )

"Yo dog I just knuckle-stuffed my bitch last night."

by coolguy7583 December 16, 2018

Knuckle Cock

Finger fucking a guy's girl under the table at a bar while he is at the table, then punching him in the face afterwards, karate style, with two fingers, like Chuck Norris?

I knuckle cocked that douchebag and took a shot of Jack to top off the night.

by JDawgBroncos1! May 4, 2019

knuckles out

When a man chooses to masturbate by grabbing his cock with with his palm facing down and back of his hand hand facing up, as if he is pulling rope out of his groin.

Lawrence gets so horny, sometimes he just has to go knuckles out and give his member an epic tug.

by SkippyD July 12, 2019

Knuckle Butler

As heard on the podcast All Fantasy Everything. A Knuckle Butler is a mutual agreed upon hand job with no expectations of receiving more.

Jimmy expected to get a French Blowjob from Sally at the end of their date. But by the end of the date they agreed on a knuckle butler because they were exhausted

by TheAllMightyFatOne July 19, 2019