jacknut 

A jacknut is a less offensive term used to insult someone.

Derek, you're such a crazy jacknut!

jacknut by Harry Johnson April 28, 2003

jacknut 

a less offensive term for jackass.something to use when u wanna call someone a name but dont wanna curse

mom:you know jim ur a real jacknut
girl:mommy why r u callin daddy a jacknut
mom:because thats wat he is
dad:(atleast she didnt curse in front of the kid)

jacknut by Imani H. May 28, 2007

jacknut 

n. a moron; one who "jacks nuts" or beats off.

Hey, jacknut you missed the fucking turn back there.

jacknut by danielle November 30, 2003

jacknut 

(v) To attack, either verbally or physically, someone who should be considered sympathetic or friendly to the attacking party.

Dude, Fox News totally jacknutted Ron Paul.

jacknut by Rock79 August 19, 2011

jacknut 

A game, invented by me, for couples to play while driving together. It is a simple game, somewhat like slugbug or punchbuggy, but has a fun twist. When they are on the road, they will notice some drivers doing stupid, dangerous, and illegal things (these people are called Jacknuts). When they see these rediculous acts of traffic moronism, they must try to identify whether the Jacknut in question is male or female. If able to determine this, then the game proceeds as follows: When the Jacknut is a male, the woman gets to punch the man. When the Jacknut is a female, the man gets to punch the woman. Don't forget to say "Jacknut" when you punch your significant other (only in the arm, of course). That is Jacknut. It is a simple yet entertaining game which you will never grow tired of playing and since the world is full of horrible drivers, you will have an endless supply of Jacknuts. Spread the word about Jacknut and get out into traffic and start playing!

This was a boring drive until we started playing Jacknut!

jacknut by jacknut January 9, 2012

jacknut 

someone who’s always irritating and gets bad haircuts.

zach is a jacknut

jacknut by Lmaoguju May 15, 2025

Jack Nut 

Someone, or something that is not worth a Fuck.

My new Supervisor is a Jack Nut.

Jack Nut by Carlito's Buey January 8, 2011