Drug selling slang (not commonly used):
A large centeralized hold of the substance being sold. The 'main supply' -brick\kilo etc- form which smaller amounts are cut, portioned down and sold off. What makes it 'da bomb'? Depends
on the scale of the selling activity and the substance in question. This usage goes back to the
early 90s. Most narcotics cops use this term
too in certain metro areas (chicago, Miami, others) when asking lower end pushers who just got busted "Who has da bomb?" and "Where is da bomb?" also "who is holding da bomb?
Guy1: How'd you get so much?
Guy2: had da bomb.
Guy1: Where?
Guy2: I went to his
motel room. He had da bomb. Just
arrived.
Guy1: Yeah?
Guy2: So
it worked out like that.