A person (usually a man) that acts so stupid you just wanna strangle them. They screw things up, say stupid stuff, and have nothing intelligent to say. Their voice is usually that of one Napoleon Dynamite.
Moron Man: "hey, man, got any weeeeed? ha.. ha.. ha"
Tanya: "Hey, man, you're a fuckernut! You're the biggest piece of trash I ever laid eyes on."
Tanya: "Hey, man, you're a fuckernut! You're the biggest piece of trash I ever laid eyes on."
by HateStupidPeople March 27, 2009
Fuckernut is used when you do something that causes great pain to your body. I first used this word when I stubbed my pinky toe on a doorframe. You can also call someone a fuckernut. It can mean "Fucking retard". Nut meaning crazy person.
by AnonymousHelper December 7, 2016
Someone who is bazar, or completely out of their mind
Could explain someone who has lost their marbles
Could explain your friend who is trying to do crazy things
Could explain someone refusing to share their weed
Could explain someone who has lost their marbles
Could explain your friend who is trying to do crazy things
Could explain someone refusing to share their weed
by Iamanut October 24, 2018