A Trech
A trech is a silly person who acts like they’re the king of the world, but they’re just tripping on air and pretending they’re important.
My cousin is a trech. He thinks he’s a rockstar just because he knows three songs.
That kid in class is a trech. He talks too much and doesn’t know anything.
My boss is a trech. He yells at everyone but can’t even fix the coffee machine.