Rate Tart

It sounds like something members of the Rat Pack (ask your grandparents) would derogatorily call a female bank teller in an era when that was a-okay with (more or less) everyone. "Hey, ring-a ding, you little rate tart...run over to the vault and get me a few portraits of Ben Franklin, and maybe a martini while you're back there, toots."

Luckily, we’ve progressed a little since the days when Frank Sinatra or Dino set cultural standards. But we still have the term "rate tart," which actually applies to a subset of credit card or bank customers.

Specifically, the name applies to customers who continually switch credit cards or move their savings from one bank to another, always looking for the best rate. Either they're chasing the lowest interest rates (in the case of credit cards), or they want to lock in the highest rates (in the case of bank deposits).

Of course, what one person calls a "rate tart," another could call a "good consumer." Ring-a-ding...don't rate-shame us, all right?