When you go in the corner of a room, butt-naked, and lean against it upside-down with your ass against the wall and your back curled against the floor. You then proceed to masturbate, and when you ejaculate, you shoot it into the air in a similar fashion as a volcanic eruption, sometimes into one's own mouth.

Mercury retrograde is the act of taking a shit whilst mooning one or more human beings. Your day can typically being going well, according to your horoscope, until you are forced into witnessing Mercury retrograde. Performing Mercury retrograde will often speed the astrological cycle forward for the individual performing the Mercury retrograde, bringing about happy and fruitful times to come.