a complete and total pussy
a person who thinks they're the king of the world, but then they get mad when someone points out they're not
My friend called himself the king of the school, but he started screaming when I told him he was just a grade-A loser.
The guy who said he’d win the contest cried when he got last place.
My brother said he was the best at video games, but he quit when I beat him in 3 minutes.