Still whip work to the white yolk, absolutely!
Gunplay is exaggerating the idea of white brutality towards African Americans. As slave owners often used to whip their black slaves with a lash. He also drops a pun on the word whip. You can prepare eggs in a whipping fashion in such a way that you can make white yolk. There’s also a pun on yolk/yoke, to continue the slave metaphor.
Whipping work could also be a reference to cooking cocaine.
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