A phenomena in which you are free floating in space in a pressurized space suit. You then stick your fully erect penis out of your suit and into space. Your entire body is then sucked out into space through the whole made by your penis, but the resulting sensation before death is the best hand job ever. Provided by Mother Nature.
Houston: "Make sure you collect enough moon rocks"
Astronaut: "Houston, we might have a problem. I'm getting a space job"