Someone who in an attempt to shed light on other's dumbassery, make themselves look like a jackass. Can also be used to refer to people who think that they are clever political satarists, but have the English skills of Frenchman.
"Clever" definition of Bush by some dumbass. Note the great spelling, I'm glad that Bush is the "presendent" who is obviously an idiot because he choked on a "pretzil." I'm sure your poignant satire would be offensive, and your spelling wouldn't be laughed at, retard.

"The only presendent of the United States of America to be all most assassinated by a pretzil.

Oh my god he must be a dumb fuck!!!"
by Slath August 20, 2005
Someone really stupid.
Jack: 1+1=3
Jill: Wow, what a dumbass!
by chinnygoat January 09, 2015
Red foreman's favorite thing to say. And shoving something into someone's ass.
*Red: Eric, didn't I tell you to wash up for dinner. I know, it's difficult to hear with your head up your ass.

*Red: What are you going to put on your resume, 'Dumbass'?

*Red: Damn good thing I went with him. He wanted to buy a leisure suit.
Eric: Come on, Dad. Leisure suits are cool. Everybody wears them.
Red: Leisure suits are for dumbasses. Believe me.
by cyt6000 August 03, 2011
My Father and you for looking it up.
You prove just how big a dumbass you are by looking this up.
by kitkatover9000 August 19, 2010
well seing as an ass is a word for donkey,i would think that a dumb-ass means a person who is as dumb (or looks like one)as a donkey.Basicly it is an insult of saying someone is dumb or stupid or even a jack ass.
"your such a dumb-ass"
by nah November 14, 2004
Someone who has completely missed the point or meaning of something. Someone who has made a big mistake with a simple concept. A combination of dumb (stupid, mentally challenged, unaware) and ass (denoting someone or something living).
A person who while driving a motor vehicle stops on a green light and goes on a red. Dumbass.
A burgular who breaks into a fish 'n chip shop and after cooking a feed, falls asleep to be awoken by the police and thrown in jail. Dumbass.
A person (or animal) who can be described as not knowing one end from the other.

Dumb-ass definition=Urban Dictionary's definition of sheila. Sheila means female. There is also no such thing as a sheila nigga. Nigga is a slang word used only with close mates of similar color but is used discretely incase of getting the beats, manhandled, pummeled, or just plain physically abused. For that Uban dictionary's definition is a dumb-ass definition. Almost all definitions related to sheila is wrong. The person who wrote it is a dumbass.
by dumbass sheila November 09, 2013
Some one who can't think for them selves or otherwise thought as stupid.
Will robertson is a dumbass for thinking he's not hipster. When someone turns into a zombie why do they turn into a dumbass? "Why are Brad and Angelina together? I think their a bunch of dumbasses"
by king richard the IV May 27, 2011

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