by xKonokox April 5, 2007

by wouldnt you like to know numnuts May 25, 2003

1. A person with a mental disorder (ex. autism)
2. A person with lots of energy who does things without thinking
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!
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!
by The Anonymous Corporation May 2, 2010

Someone who proceeds to deny that he/she is a pathological liar. They make petty lies up to make people like them!
Hoopz: Yo dude, you hear what Vick was sayin?
Hipz: No, what?
Hoopz: He was sayin that his pops is a lawyer, doctor, contractor, surgeon, and a full time nanny!
Hipz: No way!
Hoopz: Yeah, what a numnut.
Hipz: No, what?
Hoopz: He was sayin that his pops is a lawyer, doctor, contractor, surgeon, and a full time nanny!
Hipz: No way!
Hoopz: Yeah, what a numnut.
by Hollabackgrl September 4, 2006

General term referring to an individual who does not amount to your expectations. Numnuts becomes numnuts when he/she/they/feman/mailman/ steps out of line. To become a numnuts is to become wiped from the map of validation.
by Tilly with a y July 21, 2021

An idiot, primarily used in Australia and New Zealand, slang for the Australian marsupial, the numbat
Get wrecked numnut! Get out!
by TheRealMinecrafter November 27, 2019
