Hi there! Well, I was rewatching the video, and I think this is what it means. Thought it was pretty clever, but yeah. So in the video, he says, “Keep rocking. [strokes the rock like a guitar] Huh, this rock is flat.” So the rocking part was like the rock and roll part where you’re like jamming and having fun, and then the part where he says the rock is flat, meaning like the rocking out kind of died down? I guess that’s how I can explain it? Hopefully this helps, hehe! ^^”

-Kathleen