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The only acceptable thing to yell after something awesome (or not) happens.
An exclamation originating from Howard Dean and later made fun of by Dave Chappelle.

Acceptable times to yell BYAAH!!:
1. After you hit someone in the waverly jumbles.
2. After you hit someone in general.
3. After pwning your friend (or anybody else).
4. After something awesome happens.
5. Taking a shower, busting into the oval office, having sex with your wife, breaking a desk, or during a campaign speech.

Unacceptable times to yell BYAAH!!:
1. When you don't know what it means.
2. If the thing you are yelling about is not exciting or nothing is happening.
3. During a campaign speech.
Byaah!! by SLLABINATOR October 31, 2006
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a boy/girl/man/woman whose actions cause anyone to cancel all forms of human consideration, and give way to "primate-hood;" someone who is completely senseless to the point it's ridiculous or funny.
Richa is such a baangdu - she doesnt know right from wrong.

Paulas, you baangdu - i see all your relatives at the zoo everytime i go.
baangdu by kvys84 February 24, 2010
Related Words
byaan Bayan Baani Bayang Byzantine bayani byaah baan byan bayanda
Describes the fat lard condition of a lazy gamer. mostly used in the game of counter-strike
god, you need to go out and get some execise you bdaan. Eat another hotdog bdaan.
bdaan by crispy12 December 19, 2005
A byanka is an amazing girl. she is the most unique person ever. she is sweet and loving and always falls head over heels in love.she is an amazing girlfriend and will never hurt you.shes can be a bitch sometimes but only when you piss her off.she loves to be around people. she has dark eyes and dark hair. the name originaly comes from Bianca.
Girl: Do you know Byanka?
Girl 2: Yea shes so cool!
Boyfriend: Yea she is an amazing girlfriend.
Byanka by blob-blob999 November 14, 2011

BYZANTINE 

That play was byzantine and I had difficulty following the twists and turns of the plot with its myriad of characters.
BYZANTINE by j February 14, 2005

Byaaaahhhh!!!!

Imma take a shower and be like "Byaaaahhhh!!!!!
Byaaaahhhh!!!! by SkeetamusPrime September 7, 2006
is gay
biaanii is gay
biaanii by bada$$b!tch December 8, 2019