An annoying little kid at the top of his/her school who thinks they are the best and are extremely annoying. It is the stage of a kid before highschool before they become actually what they think they are.
If an 8th grader thinks he is an emo, he is a wannabe emo, and so on. When they transition to highschool, they actually become what they thought they were.
8th graders are actually all nerds that annoy everyone.
Sam: " Stupid 8th grader walked on our highschool campus and got in a fight. And, yah, he totally got destroyed "
Aaron: " What did they do to him? "
Sam: " Put a foot so far up his butt he had to eat leather for breakfast "