That's rule number one, no using
Get ghost when you see the popo'

from Waka Flocka Flame (Ft. Ace Hood) – Shit Where You Sleep Lyrics on Rap Genius

Meaning

Like Tony Montana (Scarface) said, “don’t get high on your own supply.” The first rule is don’t use the drugs you’re selling and when the police come around you gotta dissapear (get ghost).

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