It used to be when you saw something so stupid, so revolting, so rediculous, you were speachless. Now you just say buh?
Jack: I just set my hair on fire cus I wanted to be a flamer!

Bob: Buh?
by Chris Fortner May 4, 2005
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a comment that wasn't funny; an awkward moment; an instance when the music suddenly stops and you were talking loud, and everyone heard you.
Person 1: Hey everyone! Look at my toes, they are hilarious!
Person 2: Buh!
by Panyang June 13, 2006
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Onomatopoeia of a sound similar to the one made when vomiting. It is an exaggerated response that usually follows a statement that causes feelings of disgust or nausea. Common usage involves prefacing the word with a "mmmm" sound as if one were trying to hold back the gag reflex.

It is a net-friendly adaptation by Greg of a sound made by Dan.
A: So what dropped off of Sulfuron?
B: Shadowstrike.
A: mmmmBUH!

C: Your mom is really hot.
D: BUHHHHHHHH

E: I'm not gay or anything, but I would really like to touch your peener.
F: BUHHHH
by Dae-Ho July 27, 2006
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This is the newest form of the word boy... going from boy to boi to bei to boh n now to buh!
"Alryt buh!" "U wanna cum mee up l8r Buh!" "yeh Buh!" etc...
by SteveTHEware August 27, 2007
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Buh is used as "don't know" in the Eastern part of Flanders, Belgium.
1. Why didn't she answer your call?
2. Buh!
by jormeidt October 5, 2006
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a word used to describe a dog.
I.e. If the dog is gorgeous and doing something kick ass like scratching its chin with its hind legs, it could be described as buh.
also, the longer you say the word for, the buh-er the dog is
that dog is fucking buh!!!

Oh my god, have you seen that BUUUUUHHHH dog?
by macdaddy a la carte January 15, 2008
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A questioning grunt made by morons when they have just read/heard something they are too stupid to understand.
Scientist: And an object approaches the speed of light, its mass will approach infinity...

Moron:a-buh??
by Sonny January 22, 2004
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