Madcret
A madcret is a person who thinks they’re smart, but they’re really just a walking disaster. They’re the worst kind of dumb.
My brother thinks he’s a math genius because he can add 2 + 2. He’s a madcret.
My teacher tried to teach me how to write. She’s a madcret.
My friend thinks he’s a philosopher because he once said 'why?' twice. He’s a madcret.