When you ride your cat instead of your cat riding you. See Dolphin Ride.
"Hey look, Alex is giving the cat a reverse dolphin ride."
Is that the best reverse dolphin ride you've ever seen?
I would like to learn how to give a reverse dolphin ride.
When you bend over to tie your shoes and your cat jumps on your back and rides around for awhile.
"Hey look, Jean Luc Pikitty is getting a dolphin ride again."
"I'll give you fair warning Jean Luc Pikitty will want a dolphin ride if you bend over to tie your shoe!"
"Look at all of the scratches on my back. It must have been the dolphin ride."
"Can I give Jean Luc Pikitty a dolphin ride now?"