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.

fucknuckle 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'

fucknuckle by leader for the opposition October 25, 2006

fucknuckle 

Similar to fuckhead, fuckwit, fuckstain

Fuck off Howard you pillow-biting fucknuckle

fucknuckle by Anonymous April 20, 2003

fucknuckle 

A stupid or repungnant person. (20th cent origin - possibly Australian)

"Pshaw! You truly are are fucknucle, Prime Minister Howard!"

fucknuckle by Schteve March 17, 2003

fucknuckle 

A person who is really annoying, basically a fun way of saying a dickhead.

Maria kept following me so I called her a fucknuckle.

fucknuckle by nyommmmm June 19, 2016

Fucknuckle 

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

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

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!

Fucknuckle by Aj Harvey May 17, 2008