I was writing a post for my company's blog talking about Open source, and wanted to wrap it up with
Let's make waves.
I was pretty sure that the expression meant something like Let's replicate this, and amplify it in every new replication. Like the fact of doing something small but nice, so others join, do something else that's small too, but summing all that you end up with something big.
But a couple of colleagues told me they didn't know that phrase at all, and I couldn't find any reference to it myself.
Have I made that whole definition up from nothing? Is it a known expression? Could I have translated it from another language?