make it rain

verb2

1. •
   To throw a substantial amount of paper money so that it falls on a crowd, audience, performer, or group of performers, often as a way to show off one's wealth.

   • John has a propensity to make it rain at parties when he is drunk.
2. •
   To bring prosperity or work to an enterprise by selling, inventing or other productive or successful activity.

   • It's time to make it rain, my friend!