laemadon - A little boy who thinks he's the top dog and everyone else i

A little boy who thinks he's the top dog and everyone else is a nobody

My cousin is a laemadon. He thinks he's the best at everything and still can't do math.

That kid in my class is a laemadon. He says he's going to be a billionaire when he grows up.

My little brother is a laemadon. He still thinks he's the king even though he got beat up by a girl.