Grot

n.

Heard in Wexford

A profoundly unattractive woman.

In use

Is she a skeet? No, she is a grot because she has a face on her as though she was sucking on a wasp.

Posh English

Is she an attractive young lady? No, she is a profoundly unattractive one because she possesses a face as though she were sucking on a wasp.