Originally Posted by andy_fiesta
Thought I'd get you the proper definition.......
Snowballing or semen swapping is a Human Sexual Practice in which one person takes into his or her mouth the Semen of another person, and then 'swaps' it back and forth with another person through Kissing or Spitting.
There is a user on this board who CLEARED MacDonalds one night after the Essex meet by announcing he enjoys doing this with his Mrs
Honestly Everyone got up and walked out