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Correct spelling of numnut. Normally used as an insult meaning idiot. However, also implies that the recipient is a coward, sterile or impotent. A combination of numb and nut, where nut is a slang for testicle. In other words, a man who cannot feel his testicles and acts accordingly.
"Are you lookin at me, numbnut? Cause if you are, I'm going to damage what's left of your courage."
numbnut by wkc December 1, 2006
This word originated in the U.S, however, it's used in the U.K. as well. Most likely its use was born in the U.S. military, just as expressions like soup sandwich and jeep. Made popular in the movie, "Full Metal Jacket," when Hartman yells at Pyle.
"What is your major malfunction, numbnut?!"
numbnut by pedicabber April 22, 2005
1. A person of severely limited intellectual prowess, or extremely lacking in everyday common sense.

2. A viewer of FOX News, who only listens to a single news source, only communicates with others of his/her own political persuasion, and thinks "Tea Parties" are spontaneous outbursts of patriotism, without realizing they are instead, organized and funded by the richest people and corporations in America, with the intent to steal wealth from everyone. i.e. "Americans for Prosperity. "
1. "What a Numbnut! Can't he open his own mind? He thinks he's being patriotic, when in fact he's undermining the Constitution!"

2. "That Numbnut has no idea who's paying for those pre-made astro-turf signs being unloaded off that bus! What a Teabagger!"
Numbnut by Correct_Guy December 31, 2009
someone who is not only as stupid or rather idiotic, but also unintelligent or a complete fuckup
"I hear that Johnny shot himself in the head while cleaning out a loaded shotgun before he headed out for the opening of dear season, what a numbnut!"
numbnut by btezra October 25, 2002
since you are not a numbnut, then you should able to open a can of tuna.
numbnut by maximorph April 23, 2003
A guy who's had his balls busted so many times he doesn't even feel it any more. Often mistaken for a perennial loser. This group is ranked among the lowest in the male social strati.
Oh look, it's that numbnut Hobgoblin88. Let's go remind him what a loser he is.
numbnut by Hobgoblin88 July 2, 2011