Don't you know Bad Boys move in silence and violence?
Bad Boy Records is B.I.G.’s (and — famously — Puff Daddy’s) record label
At the same time, most criminals (i.e. Bad Boys) live their lives trying to balance acts of violence and not getting caught or talking to the police (“silence”). Biggie is likening his label’s reputation to “real bad boys”.
This is possibly alluding to the line “Real bad boys move in silence” from “Stop the Violence” by Boogie Down Productions. .
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