macho duke
A person who says they're going to take a dump so big it'll be in the history books and then does it in the school bathroom.
He said he'd be macho duke if we didn't pass. We didn't. He did it in the library.
She said she'd be macho duke if he didn't come. He came. She did it in the cafeteria.
He said he'd be macho duke if we didn't win the game. We did. He did it in the gym.