This is when a freshman (of any situation) thinks they are hot shit because they are in a more "educated and cooler" environment. This usually happens when they transition from middle school to high school. Although, the swagger is a lot higher when they transition from high school to college. Usually act like asses and try to put everyone down so they can feel better about themselves.
kid 1: yeah everyone thinks im a badass at UCSB
kid 2: im sure you a loser dog
kid 1: Im at college fool. You are still back home with you pathetic family
kid 2: Fuck you! you got freshmen swagger.