I do the same kinda thing. My friend is a little stingy so we call him the rabbi. Also, when someone is "crazy" or a little too aggressive about a particular subject, they'd be referred to as a nazi...a little too into something, hahaha, i got a warning cuz i called someone here a nazi cuz the guy is a little crazy about some political subjects and i got a warning. But in all, there is no offense meant to be, its just they share some of the same traits... stereotypes been the subjuect of comics for a long time.good or bad. Chappelle makes a living mocking black people. Mencia makes a living making fun of mecxicans.