WordNet
melon ball
n. a bite of melon cut as a sphere
Wikipedia
Melon ball
Melon balls are balls of melon made using a melon baller that varies from around 1 centimeter to 3 centimeters (about 3/8 inch to 1 inch). They are generally used in fruit salad.
Usage examples of "melon ball".
We've got a leg up on the melon ball industry here tonight such as would curl the blood of melon ball enthusiasts internationally.
The big soft melon ball broke only about six inches, but the German youth still had no luck hitting it.