It's Top Dawg we runnin' rap, whack rappers, feline
Reason why we don't run with cats
He is saying the rap group he is apart of is running the rap game, and at this point they are. Also the “feline”, “cat”, and “dawg” references is a play on words. Top Dawg is the first part and references their rap group. Also, dogs are thought to be stronger and more superior than cats. These whack rappers are just “feline”, essentially pussies, and that they’re new “cats”, (people), to the rap game.
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