na shava
Someone who thinks they're cool and everyone else is just background noise.
My neighbor is a na shava. He thinks he's the coolest kid in the neighborhood, even though no one talks to him.
My friend is a na shava. He thinks he’s the best at everything, even though he can't even do his math homework.
My dog is a na shava. He thinks he’s the center of attention, even when no one is looking at him.