kin-kum-shit
noun

-Another way to address someone quite dumb especially someone you have a disliking of; idiot
synonyms: idiot, dumb, dummy, dumbass, shithead, dipshit
Origin: From the word nincompoop, cum, kink, and shit

It's like calling someone a stupid cunt or a piece of shit or a nasty disgusting unholy bastard who deserves death

Aka the k word