Fucknut 

1. A person who is so annoying and dumb that they can no longer be classed as an idiot and therefore a new level of idiot was created for them, the Fucknut.
2. A person who as shit for brains (that's if they lucky).
3. A person who was dropped from a tall building at birth.
4. Also see: Alex Glumac

"Fucking fucknut."
"Don't eat from the bin, YOU FUCKNUT."

Fucknut by PotatoChip May 4, 2003

fucknut 

someone who is considered a pest with less than average intellect. someone oblivious to the fact that nobody wants them around because he's a buster. ie., tells nonsensical jokes, butts into conversations, tries to "one up" everyone, blurts out random facts that have nothing to do with the present topic, etc.
"Look, that buster Joel just walked through the door!"
a reply could be:

"Who the hell invited that fucknut to the party?! Come on, let's hide!"

fucknut by Robert Fagardo December 11, 2004

fucknut 

Backstage slang: The small square-headed nut on the side of a C-clamp used to hang a light from a bar. Secures the light so it won't swing side to side. So called because they are easy to over-tighten, snapping the nut and making the clamp useless.

Stagehand: Fuck! I busted the fucking fucknut!

Lead Electrician: *sigh* get a new clamp from storage and swap it out... fast.

fucknut by We'll sleep when we're dead. December 28, 2005

Fucknut 

A person who fucks a person's nuts.

Please don't touch my nuts. You're being a fucknut.

Fucknut by TrumpisDad December 1, 2016

fucknut 

One who is "hyper-stupid." Or one who is more stupid than stupid itself: hence a fucknut.

The girl called the guy, whom she liked, and told him that she hated him, thus the guy, knowing that she did indeed like him, called her a fucknut.

fucknut by Chad Collins December 27, 2003

fucknut 

One who is an idiot, or a dumbass, or a shit-for-brains.

Damn dude, don't be suck a fucknut.

fucknut by Dick Smack January 8, 2003

Fucknut 

Someone who's a complete and utter fool and has absolutely no clue as to how foolish they look.

That person is a fucknut

Fucknut by gargle oil December 16, 2008