It’s a reference to a very old SNL sketch called “shimmer”. https://www.youtube.com/shorts/03lLPUYkpYM

It probably won’t be up very long but it’s a classic.

Of course for maximum confusion, there’s Gen X me, making this reference to my Gen Alpha kids who have absolutely no idea what I’m talking about.

I’m still waiting for the moment in the ice cream shop when I can ask them, “sugar or plain?” https://mediaburn.org/videos/sugar-or-plain/

ah, I thought it was an Ubik reference!

Hah, nice!