fussknuckle 

fucking super slow knucklehead.
A term normally teen males use to demean each other while waiting for said fussnuckle freind.

Wazz the puckle muckle, I bee's waitin fo yo slow azz fussknuckle.

fussknuckle by Billy Bathwater February 28, 2008

rusty fucknuckle

typically the second knuckle of your ring finger after finger fucking a womans tight puss with your pointer and middle fingers only; results from getting poo from her rectum hole on it

Celeste is great. First she slobbed my knob and gobbled the baby gravy then she licked my rusty fucknuckle clean of her week old ass mayo/ fudge stank combo. AND, I posted it on Youtube for all to see.

rusty fucknuckle by cornfritter April 14, 2011

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

fuckknuckle 

complete idiot

you know that fuckknuckle who got caught trying to break in to the police station

fuckknuckle by John June 10, 2003

fuckknuckled

a state of inebriation beyond the realms of drunkdom

i cant believe how much alcohol his consumed he's completely fuckknuckled

fuckknuckled by saint bert August 7, 2009

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