Cunt-oss Share definition Flag The word "cunt-oss" originated in "fucken straya", it is a decedent of the word "cunt".Pronounced "cun-oss"/ "cunt-aws" "Sup cunt-oss" "Oi! cunt-oss!" Cunt-oss by fuck-a-luck-a-ding-dong November 9, 2015 Get the Cunt-oss mug.