Roll something nigga, blow something
Say you're ballin out of control
Let a nigga hold something

from Wiz Khalifa (Ft. Big Sean & Curren$y) – Dot Dot Dot Lyrics on Rap Genius

Meaning

The first line of this highlighted section is referring to weed. The second 2 are referring to money.

That’s why he said “specially if you got it and don’t…"
As in you not sharing your money with friends after you get a lot.

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