Quarter brick, half a brick,
You can sell it all, can’t catch me on that rapper shit

from Wale – Til the Sun Up Lyrics on Rap Genius

Meaning

You can sell a Quarter Kilo or a Half Kilo of cocaine, but regardless you will never be able to rhyme like Wale.

Should be: “You can sell it all, can’t touch me on this rapping shit”

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