Microwaving a cantaloupe, cutting a hole in it, and thrusting in and out of the mellon until you ejaculate. Then cutting up said cantaloupe and serving it at a fancy cocktail party.
I don't know which part of mellonballing I enjoy the most. Preparing the dish, or watching the delight on the faces of the party goers as they enjoy the tasty hors d'oeuvre
The sexual act of a man suspending his testicles to be massaged in between a woman's breasts. Sort of like a combination of teabagging and titty fucking.
Oh man, my girlfriend melonballed me last night. It made my balls feel good. You really need to try melonballing. It's the shiz.