K9 rim job
When you grab a dog's tail, kick its butt, and then shove your face up its butt to eat its poop.
At the dog park, I got a K9 rim job and now I'm the laughing stock.
My dog got a K9 rim job from a stranger and now he's a poop terrorist.
I did a K9 rim job on my friend's dog and now he's plotting revenge.