It's a special move that activates, when you are masturbating and the same moment, the jizz shoots out, you fart, so it bacomes a magical moment, in that everything is released from your body and you go into transcendence
Bob: Y'know Billy, yesterday was great!
Billy: Why?
Bob: I had a wank and stank, it shot me into stratosphere.
Billy: Wow, I've heared about it, but I thought that were only legends!