mad yolk
A mad yolk is someone who thinks they’re the king of the world, but they can’t even remember their own name. Usually used by people who think they’re tough but are just loud.
My cousin’s a mad yolk. He claims he’s the king of the world, but he can’t spell his own name.
She’s a mad yolk. She said she can talk to ghosts, but she can’t remember where she put her keys.
He’s a mad yolk. He thinks he’s a wizard but can’t even light a match.