The sound a retard makes.

1. Used to indicate that something is so obvious that even a retard could figure it out.

2. Shorthand for, “How did I not think of that? I am such an idiot!”
Duh! What was I thinking?
by Maldoven July 7, 2011
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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 23, 2004
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The word Duh is also used to show an evidence. Something that someone is stupid to not know.It is more used in french. Here is an exemple:
A: Hey, I wanted to use my two bucks to buy this, but I can't find my cash in my pocket !

B: Duh! You used it to buy a hot-dog, remember ?
by '-.RubySoho.-' January 2, 2006
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it means obviously... like, when someone says something you know already, something evident... --often used sarcastically--
EXAMPLE 1
- do you like chocolate?
- DUH!
EXAMPLE 2
- do you like that hot guy over there?
- DUH!
by alejandreska August 6, 2006
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when some one says/asks something and the aanswer is obvious you say duh, it can be used playfully or in a mean way.
u: is 1+1=2?
me:DUH!
by no1 U need 2 no February 16, 2009
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The phonetic spelling for "DS", as in Nintendo DS, when you say it like a regular word instead of saying the letters "D" and "S".
This name can be given to any fanatic who obsesses over buying a DS.
Robin: Man I really, really need to buy a DS.
John: Shut up DS, or should I say, Duhs!
by Nig-Marty August 1, 2006
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