Niggas move cane like Kappa shit

from J. Cole – Ain't That Some Shit (Interlude) Lyrics on Rap Genius

Meaning

Some people sell drugs, cane, or cocaine to make money.
Kappa Alpha Psi Fraternity, Incorporated is a fraternity in the Divine Nine (a group of historically Black sororities and fraternities). Kappas (or Nupes) are known to twirl canes and use them in step shows.

Cole could also be referencing sugar cane, which is simply called cane by the locals. It was the number one crop in Kapaa, Kauai, HI. Kauai. Cocaine is the number one thing to move on the streets nowadays, so he compares both types of cane.

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