A Troester
He talks like he's the smartest kid in the universe, but he can't even spell 'Troester' right. Everyone knows he's full of hot air.
He said 'I could solve this problem in my sleep' and then fell asleep during the test.
He tried to teach the teacher how to do algebra and got sent to the office.
He bragged about his GPA until he got a D on his report card.