A person can't be a poser if there is nothing to pose as.
A person that is imitating the acts of their idols or someone else that has accomplished the act in their own time (the past).
A person that claims they are something that they know nothing about is not a poser, they are just ignorant. In fact, maybe you should educate them in your spare time instead of reading this deifinition.
A person that is very young and unwilling to be taught the correct ways of their stereotype (hehehe... I love that definition).
Todd:have you heard american idiot?Thats the bestest song ever!
Bill:Have u even heard any other green day songs?
Todd:what other green day songs?