A Grand Poo Bah is any overbearing and pompous authority, often claiming numerous titles, roles or distinctions and frequently overplaying their hand. An overstuffed shirt. Someone who expects others to lick up to them for nothing. From a character in the 1885 Gilbert and Sullivan operetta The Mikado. Not to be confused with the Grand Pooh Bear, who is someone else again.
There's Larry again, trying to tell everyone what to do and swanning around like he's the Grand Poo Bah.
by Fearman March 04, 2008
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The sound a sheep makes when it explodes
Johnny Carson as Carnac the magnificent

Carnac holding envelope to his turbin: sis boom bah

Ed: sis boom bah?

Carnac opening envelope and reading question: describe the sound made when a sheep explodes
by Woodnone March 18, 2014
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A roar-like expression most frequently used by a dominant alpha male while displaying his obviously superior physical strength to other males, or to himself in a mirror while flexing biceps.
As Terry confidently rolled up his sleeves to reveal his protruding biceps, he passionately gazed into his washroom mirror and asserted with a rumbling roar: "AH-KUM-BAHHHHH!"
by DatKneeGrow May 18, 2013
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When yo name is Bah Bay BOO... you pull hoez like its nothin, yo shot on da bball court is so damn wet, your one sexy basterd, and your pro at bowling.
Girl- Damn is that Bah Bay BOO over there goin pro at bowling?

Other girl- Duh who else is that fine while bowling and pullin hoez.
by estachink July 07, 2010
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The spoken, and written form, of the common drum beat usually played after someone says a bad joke, or is being sarcastic.
Virgin: So I got laid last night...
Non-Virgin: Bah doo tsh!
by Alex / OrdealByFire July 13, 2008
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Man and woman who exchange oral anal and kiss afterward causeing you to have bah-dooty breath
“Bro... u got dat bah-dooty breath

“U aint smokein on my blunt ur breath smells like straight bah-dooty “

“I know u n yah bitch, be stickin like bah-dooty breath.

“Niggas breath be hott an stankin like bah-dooty.”
by Parkside paperz November 12, 2017
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An exclamation conveying a strong hatred of people and activities associated with Halloween.
The old scary man on the block would scream, “Bah Hallow Humbug!!” at children attempting to trick or treat at his house.
by Johnny Donut October 31, 2019
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