Jess (on first date): Joe, I must warn you that I am a Phan and require that we sing "All I Ask of You" if we want to have a serious relationship.
Joe: OMG, YES! I'm a Phan too!
Phantom Phans, fans of the character Erik (The Phantom) in The Phantom of the Opera. A 'Phangirl' or 'Phan-girl' is a girl Phan and a 'Phanboy' or 'Phan-boy' is a boy Phan.