jackey pie
somebody who acts like they're untouchable, even when they're clearly not
My friend is a jackey pie. He said he'd win the spelling bee, but he misspelled 'dictionary' and got third place.
My dad is a jackey pie. He said he could fix the whole house by himself. Now it looks like a tornado hit it.
My sister is a jackey pie. She said she'd beat me in the race, but I won and she cried.