Define Grotty Cunt Meaning

Grotty Cunt
This is the worst insult you can give someone. We already know that cunt is the most taboo word in the english dictionary so what could be worse than a grotty cunt? Just imagine it, a grotty, moldy, stinky cunt?

"No, it's not worth it Terry"
"I have to Dave"
"But she'll never forgive you Terry"
"Sorry dude, I'm gonna do it, if I don't call my mother a grotty cunt for leaving a hair in my soup the other day she'll think she can get away with murder."
By Olivie