dagbag
When you dump your poop in your partner's butt and then you say 'you're gonna eat it' and then you laugh while they do it.
I did dagbag on my girl and she had to eat my dump. She was horrified.
He did dagbag on me in the car. I had to eat his dump in front of my friends.
She did dagbag on me at the mall. I had to eat her dump in the food court.