The term "Wallflower" stands for a shy person who is unique in their own way. This word was first coined in the book "Perks of Being a Wallflower," and I think that this word is a large subculture of who some of my closest friends are today.
Lisztomania is the term used to describe a fan's hysteria when around who or what they are a fan of. It first occurred in the to fans of Franz Liszt. Just because it's a catchy song doesn't mean it's lyrics deserve a new definition.