A “Natheen” is a male who’s real name is Nathaniel and hates being called Natheen. You know a Nathaniel is a “Natheen” when he is cocky, mean, and terrible at any game that requires name. Also, Natheens are Jewish.
Bill: “This dude in fortnite can’t aimfor shit!”
Dan: “Oh, that guy was most likely a Natheen!”