Racks on racks, I don't rap on tracks
Without my A-game so please don't ask
Me about no pressure
Bitch with the grip of my fingertip
I can hold this coast together

from Ab-Soul (Ft. Kendrick Lamar) – Illuminate Lyrics 3 on Rap Genius

Meaning

Kendrick goes hard or not at all. He’s saying that when he grips the mic, he holds down the entire West Coast

Plus, in the last two bars he’s saying the world is in his hands, so that way, literally, a grip of his fingertip would be able to hold the coast together

Parts of California are also literally breaking apart from the rest of the United States due to shifting in the San Andreas Fault. So while metaphorically holding the west together with his unifying message, Kendrick alludes to a very real issue of the state actually drifting into the Pacific

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