some one who looks up "dumbass" in the dictionary and should also look up dimwit to define them selves. in other words....you.
you get called dumbass everyday.
by RAINS-ON-YOUR-DREAMS January 30, 2007

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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

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A person who doesn't know what Dumbass means
ITS YOU HAHAHAHAHA YOUR A DUMBASS!!!!!! (Also know as Shan)
via giphy
by BasicAsian October 01, 2016

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A natural born idiot who lives life not knowing which way is up or down,left or right, and black from white. An underdeveloped brain. They'd loose their head if it wasn't attached. An unique species. Not to be confused with a dumb blonde which are very similar but indeed different. So the next you meet a dumbass cut them some slack.
Austin: Hey Tanner where's Logan?

Tanner: Oh he's been trying to get his feet out of his shoes for the past half an hour!

Austin: Isn't he wearing tenna shoes?

Tanner: Yep, I gave up and left him.

Austin: Oh gosh Logan he's such a dumbass!

Tanner: Maybe I should go help him untie his shoes.

Austin: Yeah...... He's ( Logan walks in room)

Logan: Hey guys I finally got my shoes off! (Holding scissors and shoe laces in hand)

Austin: Hey Logan maybe you should go back to wearing sandals.
by Snoopystheshit June 29, 2016

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You.
You are a dumbass.
by CaveStoryManic July 01, 2015

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Someone really stupid.
Jack: 1+1=3
Jill: Wow, what a dumbass!
by chinnygoat January 09, 2015

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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

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