a variation on the word cunt, to be used in schools as a safe way of shouting "cunt" when authoratative figures are in the local vicinity
used by neil and stuart firstly, but has since spread and is used quite regularly by pupils and teachers alike.
GUNT GUNT GUNT
"That Alasdair Bain is a right gunt aint he?"
"He sure is, he suuuure is"