Fuck knuckles

Fuck knuckles are when a teenage boy has been masterbating and constantly has jizz on his knuckles

I will never shake hands with my nephew Johnny because he constantly has fuck knuckles and seems to be always jacking off.

by sturtle September 10, 2014

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 27, 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 08, 2003

Fuck-Knuckle

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

My boss is a real fuck-knuckle

by morningwood faerie February 06, 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~ August 05, 2005

Fuck knuckle

An idiot, a dumb person.

Wow jones was a fuck knuckle to jump off that roof!

by Hayden The Sexy March 05, 2006

Fuck Knuckle

Someone who is intensely stupid, useless, or just plain ignorant.

"You can't clean a toilet with a rake, you stupid fuck knuckle"

by MichaelMayfall December 30, 2014