A hip-hop version of the common exclamatory phrase "Ta-Da!", most often referring to a big booty, a extraordinary wad of cash, or any veritable prize that's worth gloating over in a wide-eyed and vocal fashion.
(man points toward new set of spinning rims on his 1984 Buick LeSabre...): Tadaow....TADAOW!
is Mexican slang for someone that is either ignorant,a dumb ass, dumb fuck, etc.
Joe: Look at that bitch over there she's wants some dick ey?
Cruz: Fuck it homles Imma go hit that shit.
Jorge: Where's he going can I go?
Joe: What do you mean where he going? You know where fucking TAPADO