Ajentao
A person who acts superior to others or puts on airs, especially by trying to show off or suck up to teachers and professors (the term is derived from the word gente, implying the person is acting like they are from a higher social class).
In a classroom: The professor announces a midterm date, but Pedrito suggests having it even earlier than planned, so his classmates say: Oh man, this guy really is an ajentao.
Automatically translated from Spanish