When a woman, or male, put a many icecream toppings on their genitals ( ice cream, whipped cream, cherries, hot fudge, ect.) Then ask you to eat it off of or out of their genitals.
I came home to find my girlfriend laying on the bed, with her pussy covered in whipped cream,hot fudge, and a cherry ontop. She then asked if I would like a taste. To which I replied, "I'd love a taste of your filthy sundae."