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.
This was the first Latina i've seen in Morton Grove in years, she must have been looking for a Taco Bell. I haven't seen fake titties in my life, except for on pornos. I starting to feel on her Melonball-Tittyballs, they were fake as fuck.