C.I's

noun

C.I.

1. C.I's is a New York term that refers to cigarettes. C.I being short for the word cigarette. Dp, Fat Joe, John Forte, and Mobb Deep are just a few rappers who use this term. It is also used to refer to Cincinatti. Like in Hi-Teks song. "Pistol-whip tight, night monopoly Four 380's in the prophecy, the bigger I got Handle B-I, smoke a C-I, snuff a C-O" -- Mobb Deep (Can't get Enough of It [Hell on Earth])
2. Confidential Informer (police term for a snitch)