machaughtiness
Machaughtiness is when you think you're royalty, but you can't even spell 'frigidator' and you still call it a 'frigidator.'
My dad said he's a genius because he can multiply 3 by 4. He got it wrong and called it 'a divine revelation.'
My sister said she's a famous model. She took a selfie and it looked like a raccoon was taking a nap.
My brother said he could beat the world champion at chess. He lost to a kid who had a snack.