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Numnut (n)This term is usually used to describe one of little intelligence or thought. It originates from the term numb nut meaning that ones nut, or head in this case, is numb i.e. the numnut has little to no activity in the head.
"i sprayed deodorant on my hair this morning and used my hair spray under my arms"
"oh you numnut"
Numnut by louisCo April 10, 2006
Numnut is the word my boyfriend uses to describe me. It means retarted, stupid and sped.
me: “Steam is hot”

Boyfriend: “ it wasn’t the steam numnut it was the bag.”
Numnut by Floyd George May 4, 2021
An dumb person or bumbling idiot. "Num-" refers to the term "numb", describing a person's general feelings/attitude towards people.
-used as a non-offensive, yet funny insult
"Oops. I just spilled another soda"
"You dam numnut"
numnut by Freddfu December 28, 2005
wat i use as an insult with out actually insulting anyone. its a good word if u have to stop cursing!!
omg, ur such a numnut!
numnut by Phil Doran September 25, 2005
Someone idiotic or stupid.a jackass asshole something like that.
tahjae is the biggest numnut known to man.
numnut by xKonokox April 5, 2007
1. A person with a mental disorder (ex. autism)

2. A person with lots of energy who does things without thinking
1.

Lou: Man, that kid with ADHD is such a numnut.

2.
Sally: I can't believe that hyper kid told the principal to go fly a kite. What a numnut!