A disease caught by stupid people.
That guy caught a case of the dumbass.
by GNX October 20, 2003

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stupid people doing stupid things and/or saying stupid shit.
Person #1 :Eh yo, eggs are that dairy pro-duct right? So Cows must make eggs.

Person #2: Dude, thanks some deep shit.

Person #3: Oh Jesus, you guys are dumbasses.

-actual quote from someone i knew.
by u2ez BlackOps April 14, 2010

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Idiot. Moron. Room tempeture IQ. Tard.
Rationality of Florida. Also Black Cat of California.
by Fortran 5 March 03, 2005

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Anybody that puts any information about themselves or anybody they know on UrbanDictionary.com that nobody cares about or will ever take the time out of their day to look up. These people have way to much spare time and basically polluting a great website.
I take time out of my day to edit good definitions, NOT A BUNCH OF BULLSHIT SOMEBODY WILL NEVER READ! I HATE DUMBASSES!
by .....Unknown..... March 04, 2009

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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You.
Insert your name here is a dumbass.
by skitzo August 26, 2003

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Someone who somehow gets a lot of girls but is stupid as fuck. A dumbass is someone who usually plays hookie, skips school, doesn't pay attention in class. The funny thing about dumbasses is that they think there cool because every one is laughing, but the truth is every one is laughing AT them not with him.
Classmate: Wow Mike do you know anything?

Dumbass: *Laughs*

Classmate: Seriously...
by Sevenfold4life May 20, 2008

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The Urban Dictionary T-Shirt

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The Urban Dictionary T-Shirt

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George W. Bush, 43rd President of the United States
Dumbass was elected president for 2 terms
by TVA September 07, 2006

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The Urban Dictionary Mug

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt