Green’s Dictionary of Slang

P n.1

[pimp n. (8)]

(US black) a general term of address.

[US]A. Steinberg Running the Books 6: Inmates exchange intricate handshakes and formal titles: OG, young G, boo, bro, baby boy, brutha, dude, cuz, dawg, P, G, daddy, pimpin’, nigga, man, thug thizzle, my boy, my man, homie.