A Yummy Nunu is when you shit in a girl’s mouth then jump on her stomach so that she projectile vomits it back into your mouth.
Jason: How’d your date with Sarah go last night?
Mark: It was awesome! I even gave her a yummy nunu!!!
Mark: It was awesome! I even gave her a yummy nunu!!!
by Ch3rnobyl February 8, 2022
Get the yummy nunumug.