And my nigga sold 'caine
He ain't need no old lady

from Big Sean – Big Nut Bust Lyrics on Rap Genius

Meaning

The correct lyric is “My nigga sold cain(e) and he ain’t need no old lady."
This is a play on words for cain and caine (cocaine) and an old woman needing a cane, which he also uses in his song Mr. Incredible @ 1:13.

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