Felix Girl
A crazy fangirl that will take extreme measures to learn anything and everything about the her target boy. They usually work in groups and will attack you if you hide information about their target.
Boy: Look at all those Felix Girls! I wish I had a fan club.
Girl: No you don't! One of them attacked me with a math book this morning because I wouldn't tell them where he lives.
Girl: No you don't! One of them attacked me with a math book this morning because I wouldn't tell them where he lives.