A dickhead who likes to invade everyones privacy and will happily eat cock whenever is possible. He/She talks too much and needs to be sent to South Africa to drop him/herself on his/her own head. They talk out their ass most of the time.
by Ol Meanings November 5, 2020

by Englishdude January 30, 2010

This particular knuckle on this particular hand has seen more ass than you will in your entire life-a genuine fuck-knuckle
by Breadstick Octahedron October 9, 2017

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 9, 2014

a fuck knuckle is like a dick knuckle or a fucktard
basically its a person that has the IQ of a swamp flea
basically its a person that has the IQ of a swamp flea
by toostr82bgay December 23, 2004

a large mass around the penis. resulting from torn blood vessels when a penis is "broken" or bent while erect. often referred to as dick gristle.
by Mrewood November 5, 2010
