a perfect person
A perfect person is someone who goes to Urban Dictionary and yells at people who write dumb definitions like "emo" or "prep." They think they're the best and don't know how to be cool.
"Emo is the worst!", A person who doesn’t know what emo is
"Why do you hate prep?", A person who doesn’t know what prep is
"Scene is the worst!", A person who doesn’t know what scene is