When a woman spits the cum that she so nicely sucked out of a man's balls with the piss that he then deposited in her mouth because she wouldn't swallow the cum.
That chick sucks a great dick except she doesn't like to suck it all the way down. Last night, I thought that I taught her a lesson by saving up a lot of piss to trail the stream of cum into her mouth. It was all cool until she pulled off the Yellow Snowball. She's a sneaky one, but hot and horny, so...
by Sed8ed March 22, 2004
A snowball that is covered in urine
Tom decided to make a yellow snowball and throw it at John, much to the humour of all his classmates.
by Rob Neal January 24, 2007
The bum's cock was so dirty that the prostitute gave him a yellow snowball after she sucked him off.
by skin January 17, 2004