used as an exclamation expressing awesomeness or excitement.
Hank: Hey, guess wut?
Clem: wut?
Hank: Mary Lou and I did the horizontal mambo last nite.
Clem: BOOM DADDY!
<high fives>
Hank: yeah…
by Sammy Tits June 5, 2007
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A word describing someone or something that is awesome, epic, or great; usually fallows the adjective, "pretty."
Johnny Cash doing a back flip off of a unicycle while on fire would be pretty boom-daddy.
by Dr. Aromus Tessola. August 22, 2010
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Taken from Black Eyed Peas, and made into an amazing saying, this can be used for cometic relief and in an awkward situation.
Person 1: Dude, did you sleep with that girl last night?

Person 2: . . . !

Person 3: Daddy? Daddy? Boom boom pao?

Person 1, 2, & 3: *Laughs hysterically*
by N@y March 26, 2011
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