Fresh off of the strip, they attended Yale
All my niggas afloat, so now I'm fit to sail

from Wale (Ft. Chinx Drugz) – Let A Nigga Know Lyrics on Rap Genius

When he was released from jail, “fresh off the strip”, he went back to work keeping his team above water. Chinx pronounced sail as “sell” here, tying into the drug sale theme of these bars.
Wale picks up this homonym in the next line…

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