To rant on something/someone in a complaining, angry manner. Usually the word cunt rant is front of it to show that it is indeed a cunt rant.
CUNT RANT! I fuckin downloaded the L4D2 noSteam torrent, installed it, and it didn't even play! I spent 8 hours downloading it, and it says I ain't got the appropriate permissions! FFFFFFFFFFUUUUUU-------
by BlackHOUND August 15, 2010