A non communicable disease that tends to affect young adults but may be noticed in older individuals who continue to be carriers for many years to come.
It was out of sheer dumbassness that he opted to get drunk and get into an arguement with a cop...
by nachomama February 17, 2012
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a person/animal/other organism that does actions/things that are unfavorable and seen by others as stupid, it's also an insult to a person who is pea-brained.
bosco:10+10 is not twenty it don't have ten in it!
Damien: bosco u fucking dumbass it doesn't need to have that to be twenty
Ben:seriously bosco, did you skip 1st grade or something?
by a wild bandaid May 7, 2017
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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 14, 2015
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someone who is an idiot or stupid but more aggressively meant and said
i am a dumbass
by urmomshot June 30, 2022
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A criminal offense in which a person acts like a dumbass.
Johhny was caught wanking in his car. He will be convicted of dumbassism.
by r-u-done April 13, 2005
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Someone who looks up the word "dumbass" in a dictionary.
If you don't know what a dumbass is you really are a fucking dumbass.
Many people don' realize it, but they all sound like dumbasses.
by An A Cup February 9, 2018
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Your a dumbass
by A bitchy kid November 6, 2020
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