1 definition by Bradypwnin
The act of ejaculating into a man's penis slit and when that man ejaculates he will be ejaculating twice as much semen (his and his partners).
Man 1: Kyle and I are totally going to do some sand worming tonight at Toby's bachelor party!
Man 2: Its going to be a sand worming fest!
Man 2: Its going to be a sand worming fest!
by Bradypwnin August 6, 2009