So when you see them folks, don’t forget to warn a brother

from B.o.B – Play for Keeps Lyrics on Rap Genius

Meaning

The twisted society may of course want to take someone under, in this case you should warn a “brother”, which is B.o.B., while “folks” are the police, a.k.a. who are trying to take him under as told is the previous line.

“Warn a brother” and “folks” together also refer to the Warner Brothers cartoons, which always ended with “That’s all Folks!”

To help improve the meaning of these lyrics, visit "Play for Keeps" by B.o.B Lyrics and leave a comment on the lyrics box