You niggas ain't copping these, niggas ain't looking like me
Nah, I ain't checking I.D. but I bounce 'em with no problem

from Childish Gambino (Ft. Problem) – IV. sweatpants Lyrics on Rap Genius

Meaning

Well, some are:

A play on “bounce”: even though he’s not working at a club as a bouncer, he is still “bouncing” these other rappers. It’s common for people to use I.D.s to get into clubs, and in the same way fake rappers try to get into the rap game. Fakes are always easy to spot though. Gambino walks in with no I.D., of course.

To help improve the meaning of these lyrics, visit “IV. sweatpants” by Childish Gambino (Ft. Problem) Lyrics and leave a comment on the lyrics box