I think it's somewhat cute as a nn for Jasmine or Jazlyn or even Jessica or Josephine, if they're a certain personality. But it also has a cheap, street-name quality to it, like you might find it on one of the Sharks or Jets or their girlfriends in West Side Story.
Likewise on a guy, but it seems even more self-conscious there.
I recently read a book about the famous robbery of Brinks headquarters in the early 1950's, and one of the thieves was named Adolph Maffie, called Jazz.
You're entitled to your own opinions. You're not entitled to your own facts. -- Daniel Patrick Moynihan