Girl I'm on that clean shit, you already know
You ain't never seen this, I'm ready to go
I got em saying, I, I, I, I, I, I

from 2 Chainz – In Town Lyrics on Rap Genius

Meaning

Right now his game is tighter than it’s ever been and she should expect no less from him.

Clean shit could also be referring to his touring lifestyle, that he might be having sex with a different chick every night, but he always wraps up and is clean when it comes to sexual intercourse

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