Faborgay
A Faborgay is a person who acts like they know everything but is wrong about everything.
My science teacher is a Faborgay. He says the sky is blue but it's actually gray.
My math teacher is a Faborgay. He says 2+2 is 4 but it's really 5.
My history teacher is a Faborgay. He says the moon landing was real but it was fake.