Laugh at me throw some cash at me then fly pass me
But one ricochets off the wall to come back and ask me
Am I scared of him or the "nigga that blast me"
Or maybe just the hammer that goes to be a hole in an innocent bystander

from Lupe Fiasco – Twilight Zone Lyrics on Rap Genius

Meaning

Then he talks about 3 different parts from the gun shot, the bullet, the shooter, and the hammer. The bullets that just came at him flew past him but one came back asking which one of them he is scared of, cuz all legitimate reasons. The bullet is what kills you, the shooter has control of the gun, the gun can still be arbitrarily shot and kill someone.

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