Now get yo' ass to the back as I'm flying to the track
“Track” is a slang term for an outdoor area where prostitutes sell themselves. The term “track” is also used in reference to the backing music that a singer/rapper performs over.
So here Bun B is cleverly making a referring back to the previous stanza where he’s speaking as a pimp, but also speaking as a rapper in light of the next stanza.
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