make it rain

Meanings

1. To bring prosperity or work to an enterprise by selling, inventing or other productive or successful activity.
2. 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.
3. Used other than figuratively or idiomatically: see make, it, rain.

Etymology

Originates as a slang term for throwing out lots of cash to dancers in strip clubs, as if money is raining down on them. Draws from its roots in rainmaker (“a medicine man who seeks to induce rain; (figuratively) a person having the ability to generate business”).