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1. dumbass
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. Sep 5, 2003 share this
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2. dumbass
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 Dec 20, 2003 share this
3. dumbass
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 Dec 20, 2003 share this
4. dumbass
half the people writing these definitions
gellin means your not cool
by Seth Jul 8, 2003 share this
5. dumbass
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 Sep 17, 2003 share this
6. dumbass
see george w bush

A person who lacks intelligence
a moron, once again see george bush
by n333m Nov 12, 2004 share this
7. dumbass
1. A person of ignorance or arrogance
2. The KKK
3. A person who thinks they know something and refuses to accept the truth of their knowledge
You are a fuckin dumbass!
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