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An awkward, scratchy sound from deep within the throat, that is widely used in VT to describe ugly, nasty, vulgar, stupid bitches; it can also be used as a noun.
Ewww... look at that nasty BOAHH!

LIL' AL: (looking all around him)"Where!?! Where!?!"

Nasty! Do you see that fugly bitch? BOAHH!
by gen. boah catcher May 02, 2009
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