Fiona is a cuntyasshole who will cheat on their boyfriend with your ex. Fiona is a slut and will call other people hoes even though she is the only one in your school that is one.
“Ugh, she’s such a bitch.”
“Yeah, that’s Fiona”
“Wow didn’t she cheat on her boyfriend with her best friendsex?”
“Yeah, such a slut.”