Started off with that .oz and tried to flip that bitch to a whole ki'

from Stalley (Ft. Meek Mill & Rick Ross) – BCGMMG (Remix) Lyrics on Rap Genius

Meaning

Meek started out with a small amount of dope (an ounce) and successfully hustled until he was able to make enough to buy and distribute a kilogram (35 ounces).

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