Habotnic
A person who acts like they’ve got the last word even when they’re clearly wrong. They’re like a kid who still thinks they’re the best at everything, even when they lost the game.
My dad is a habotnic. He still thinks he’s the best at golf even though he missed the ball three times.
My mom called me a habotnic for thinking I could beat her at Scrabble.
My uncle kept arguing with the TV even though the show was already over.