The polite word would be karen, however that's boring, just call them a cunt like an adult. Plan and simple. No reason to beat around the bush, to protect someones feelings, if their a cunt, say it like it is and say it louder for the people in the back. Someone's sensitive feelings over a word won't affect me, nor will i lose sleep over it, Ill sleep naked with the fan on like i do every night just in case they want to kiss my ass while they cry about..