Definitions by Chris Mill

snowball 

you guys got it all wrong. Snowballing is passing cum back and forth between two or more people's mouths. As it gets passed, the amount of saliva and cum gets larger and larger (or snowballs.

Did you hear that Conlan droped a huge load in Shamus Mcdonoughs mouth and they snowballed for hours!

snowball by Chris Mill April 9, 2006