new money

noun3

1. •
   Persons or families that have recently become wealthy.

   • They call me new money, say I have no class, I'm from the bottom, I came up too fast. — 2004
2. •
   (humorous) The metric system of measurement, as opposed to the imperial system.

   • This recipe says add eight ounces of flour; what's that in new money?
3. •
   (UK) The decimal monetary system used in the United Kingdom since 1971.