Obnoxisity
Acting like you're the king of the world when you're actually just full of hot air.
'You're not even worthy of my time!', said by someone who just failed the project.
'I'm the best at everything. You're just a failure.', said by someone who couldn't even pass algebra.
'I don't need to talk to you. You're not even a real person.', said by someone who couldn't spell their own name.