Top definition
Someone who looks up the word "dumbass" in a dictionary.
If you don't know what a dumbass is you're really a fucking dumbass.
by Assholes Inc. September 05, 2003
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2
Noun

1. Someone who attempts to be a smartass but is too dumb to actually succeed.

2. Someone who holds a stupid, illegitimate or completely baseless opinion with a perplexing amount of self-righteousness.
Guy 1: I think it might be time to have that compound fracture looked at by a doctor dude.
Guy 2: Nah the problem would get compounded Lol
Guy 1: WTF? You are such a dumbass.

Guy 3: Hostel is the best movie that was ever made ever!
Guy 4: Oh my god what a dumbass...
by IQuarent April 13, 2015
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3
A person is both stupid (e.g. dumb) while also stubbornly refusing to stop being stupid when asked (e.g. ass)
I couldn't teach him how to use the paintball gun because he was running around with it between his legs like a dumbass.
by dumbass September 17, 2003
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4
A great word that is used by Red Foreman from the 70's show on FOX.
Red Foreman: Kitty that foriegn kid is a dumbass
by Endless Shadow December 20, 2003
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5
A person who is both dumb and an ass at the same time. Contrast with "dumbass," which is a conjugate of the terms, thereby creating a new class of person. However, "dumb ass" confers a meaning by which a person is both embarassing to the human race and of below average intelligence.
John you are not only a dumbass, you are a DUMB ASS.
by ChickenBonz October 11, 2006
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6
half the people writing these definitions
gellin means your not cool
by Seth July 08, 2003
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7
dumbass - noun/adj.

1.) a stupid person
2.) a stupid descison
3.) george bush.
related to idiot
Tom, you're such a dumbass.

Tom, that was a dumbass descision.
by alex December 20, 2003
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