peanut butter knuckle fuck

When another person, or animal, licks peanut butter off your balls while you jerk off.

Man, my girl gave me a peanut butter knuckle fuck last night.

by Britt Charnock March 6, 2017

Crimson knuckle-fuck

The act of fisting a girl when she's on her period.

I gave the missus a crimson knuckle-fuck last night.... it got messy.

by L1feLus7 April 1, 2009

one knuckle fuck

This happens when a person that you are finger fucking .....with one finger.....your finger fucking finger....gets off when you only stick one knuckle in and they orgasm.

She's a one knuckle fuck!!! I didn't even get off!!!

by JoeyBomm July 11, 2020

Fuck Knuckle

n, a noun to describe the type of person who upon seeing you immediately want to fuck right in the face with your knuckle,

v, a Fuck Knuckle is a person who would benefit from having their face rearranged on a permanent basis using only a fist

Sean: "Jo do you see that Fuck Knuckle across the street?"

Jo: "Yeah go put his face in a new shape, He's a Fuck Knuckle!"

by The Fairy Sesh Mother November 26, 2019

Fuck Knuckle

General dickhead. See also Fucker, Asshole, Cunt et al.

That's not my wife you stoopid fuck knucle!

by Izzy Stewart April 8, 2003

Fuck-Knuckle

Brick-like intellegence coupled with new levels of arse-holiness.

My boss is a real fuck-knuckle

by morningwood faerie February 5, 2003

Fuck Knuckle

Can be used to describe a person who is generally a dickhead, or used when something goes wrong.

A) You are such a fuck knuckle

B) Fuck knuckle!

by ~primakat~ September 1, 2005