Guidette?

From a thread on Gawker about the new Jersey Shore reality show on MTV which features the greasy over-tan over-bloated ‘guido’ culture of New Jersey:

Commenter A: Language query from a Midwesterner: Is the feminine form “guidette”?

Commenter B: Yes, kind of like the feminine of “Midwesterner” is “heifer”

Commenter C: Yup. Or ‘whore’.

via Gawker