Here's my phone number, your man ain't got to know

from The Notorious B.I.G. (Ft. Diddy & Mase) – Mo' Money Mo' Problems Lyrics on Rap Genius

Meaning

He transitions from his “five-double-oh” Fortune 500 reference to his night club phone number dialogue (as if “five-double-oh” were the last digits of his phone number, get it?)

ps Word to the Wise: giving a girl your number instead of getting her number is a total Beta-move

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