Fucknuckle

When someone is a damn fucking idiot. (Typically used in Australia)

Jimmy: Can Pigs Fly?
Kyle: You absolute fucknuckle!

by Aussiebummer69 July 14, 2016

Fucknuckle

An idiot who digs (looks) into things that should not be dug (looked) into, only to find out they're wrong about why they went in search and also in what they found.

Stupid Fucknuckle got it wrong!

by Aj Harvey May 17, 2008

Fucknuckle

to screw something up.

Whenever chet works on his bike he always pulls a fucknuckle.

by Dick Fitzwell July 12, 2004

fucknuckle

a wanker, an idiot, a jack-off. technically someone who fucks their knuckle, i.e. their hand.

instead of calling someone "fuckin' wanker" or "jack-off", you might call them "fucknuckle" - quite offensive.

by Macalito January 29, 2006

fucknuckle

n.used to describe someone who is an arsehole or is very stupid. mainly used in australia and newzealand, as far as i know. a negative desription of said person.
similar to fucktard
the coupling of two english words fuck and knuckle

'john howard is a fucknuckle'
'yeah,what a fucknuckle'

by leader for the opposition October 25, 2006

fucknuckle

Similar to fuckhead, fuckwit, fuckstain

Fuck off Howard you pillow-biting fucknuckle

by Anonymous April 20, 2003

fucknuckler

a fucking stupid shithead asshole

you stupid fucking FUCKNUCKLER!

by Richard Fury January 16, 2008