No, it's not an interwebs meme. It's a used by yours truly, totally free, delightfully easy way to end those calls from Nancy-at-Customer-Service-There-is-nothing-wrong-with-your-account-I-want-to-sell-you.
I don't know if it works on cell phones (it looks like there might be a charge, but I didn't investigate any further), but I'm guessing that many denizens still have a land line.
When you can answer your land line, go to www.nomorobo.com.
It takes less than 5 minutes. Your phone will ring once.
And then, whenever a telemarketer, a Medicare Specialist, an IRS scammer or any other robocaller tries to disturb you, you'll hear one ring, and then silence. And the absence of that second ring is quite satisfying.
You can thank me in Comments.