The only way out the ghetto, you know the stereotype
Shooting hoops or live on the stereo like top 40

from Kendrick Lamar – Black Boy Fly Lyrics on Rap Genius

The perception (stereotype) of the hood/ghetto is that only rappers and basketball players get out and make better lives for themselves.

Also, “stereo-type” is a nod to the music of the “top 40” he talks about in the next line.

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