Top Definition
Duh means "No shit sherlock" and/or "Thank you captain obvious"
Him: I'm 18
Me: DUH!
by Matt June 17, 2004

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means "Of course you idiot"
"Did you know he was gay?"
"Duh"
by Alison February 08, 2005

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A word people use when the obvious is stated.
"Dude, what is this 'sex'? Is it the act of shooting liquid into one another?"
"*facefaults* DUH!"
by dj gs68 October 23, 2003

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replacement for the sarcastic retort, " No Kidding! "
" Hey, the Sun is bright "
" Duh! "
by MzQ July 21, 2003

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Obvious, totally obvious.
1 + 1 = 3 , duh.
by Fill Plates December 05, 2002

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Originally an insult. It is the sound that a mentally handicapped person makes. In the beginning, the word was complete with a hand gesture of smacking your wrist across your chest. Means "obviously".
"This party is lame!" "No duh!"
by CurlyNina October 22, 2004

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Sound used to imitate a mentally retarded person as an answer to an obvious remark or question. The person using "duh" is thereby sarcastically indicating that he/she is not retarded and the forgoing remark or question is obvious to him/her.
Him: Hey, to insert a column you have to press the column insert menu!
Me: Duh! No kidding!
by martaze July 31, 2008

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The Urban Dictionary T-Shirt

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The Urban Dictionary T-Shirt

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