1. An idiotic and unqualified person.

2. A buffoon that always makes the wrong choices.

3. A detestable and moronic person.

4. Someone with no accomplishments, but pats themselves on the back anyways.
You know, that Obama... he's really a certified dumb-ass. A real dummy with no clue. When has he proved he can accomplish anything?
by dood73 June 3, 2010
Get the dumb-ass mug.
Someone who is mentally ill in ther fucking brain
That dumb ass thinks it's yanni not laurel smh
by Imsmartlol173 October 17, 2018
Get the Dumb ass mug.
If you came looking for this as if you didn't know what it meant than that pretty much describes it.
You: "Bro isn't a quarterback just someone who needs some spare change?"
Me: "Shut the hell up you fucking dumb-ass!"
by SuperL August 2, 2021
Get the Dumb-Ass mug.
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 9, 2013
Get the Dumb-ass mug.
A donkey that cannot whinne
That donkey can't whinne, it's a dumb ass
by Qaltilon May 30, 2007
Get the Dumb Ass mug.