I'm from the streets where the
Hood could swallow 'em and, bullets'll follow 'em and

from Jay Z – U Don't Know Lyrics on Rap Genius

Meaning

Jay is from the Marcy Projects of Brooklyn, New York. Violence was so prevalent around Hov that a lot of people became desensitized; at the age of 12 he saw fit to shoot his own brother for stealing his ring to support a crack addiction.

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