Painted Glove - Putting your hand in someone's butt and spinning it like a c

Putting your hand in someone's butt and spinning it like a crazy person trying to paint the inside of a sewer with poop

At the party, my dad did this to my uncle and it made the whole room laugh

I did this to my crush and now we're both stuck in a relationship

My brother tried this and got stuck in my sister's butt for 10 minutes