ferret cunt

adjective, aka; a "duncan", a dirty, unwashed being, male or female, that eats from bins and keeps flies, rats and fleas as family pets. comes from kentish school play ground slang... particulary St. Anselms.

"oi keiran you ferret cunt, get out dat wheelie bin!"
or...
"amanda you're such a ferret cunt, jus look at the shit stains on your fore head!"