A fork of Rural Dictionary
When you cum in the air and catch it in your mouth, much like the children's toy "cup and ball" where you try to catch the ball in a cup attached by a string.
Man why would I ever need to play cup and ball when I can just play Cum and Ball instead?
when you accidentally cum all over your balls and its super sticky
Boy: Dang i got big cum balls!
GF: The fuck?