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
It’s a well-known rumor that when rappers feature on another persons track, it’s “subtly hinted” that they tone down the quality of their verse so as not to outshine the “main rapper” on his/her own track, which is also called Renegadeing. Kendrick goes hard or not at all.
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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