Urban Dictionary: Not Dumb

a common term used when someone is being stupid or idiotic... or just dumb, made into a noun. (c)amanda ryyla

Alessia is a dumb dumb.

by amanda December 29, 2004

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Certain people who portray a level of retardedness vastly greater than the general populous.

"Hey SSgt! YOU'RE A DUMB DUMB!" (Candido)

by The Great Khaliba December 23, 2008

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A common term for someone acting in a stupid manner.

"YuB is being a dumb dumb"

by RobombRobot June 18, 2019

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Out of line, ridiculous, completely uncalled for.

Audrey told what to the cops? That bitch is dumb-dumb.

by Stuntin on ya December 17, 2010

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A terrible disease that makes you unable to brain.

I can't brain today...I have The Dumb

by MissCellany May 12, 2010

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If you don't know what this means then you are.

I'm sorry this definition is so dumb.

by an idiot defines... March 14, 2019

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This occurs when you have an altercation with someone who’s extremely stupid.

I had been told Millie wasn’t that bright. But I didn’t have my first dumb-in with her until last week when she tried to open a checking account without proper funds.

by Victoria Skyles July 08, 2009

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