One of my favorite memories is when one of my students thought that his camera/mic was off (definitely was on!) He turned his music on as loud as he could and started to do the floss. From that point forward, instead of rewarding this student with online games, I told him that he could start dancing at the end of activities.
I had a Kinder student who would say “How do you like me now baayyybaayyy?”when he’d complete a task. He must have seen it in a show and did it consistently for at least 3 months before he found a new phrase to say to me.