A dude wrote my dog from Pelican Bay
The letter say, Nas I got your back the fools don't play

from Nas – Get Down Lyrics on Rap Genius

Meaning

Pelican Bay State Prison is a remote prison in northern California with almost all maximum-security inmates. Gang leaders smuggle letters out of the Bay with parolees and visitors so that they can stay in touch with gang operations. Basically, this letter is from a serious gangster.

This pretty much solidifies Nas' street backing while on the left coast which is important, espcially for an NY cat.

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