Fecal Astrology Share definition Flag Fecal Astrology is the scientific process of determining your horoscope by reading your morning bowel movement. Her knowledge of fecal astrology gave Alexis an ominous feeling when she saw corn in her stool. Fecal Astrology by Alexisycho January 12, 2012 0 0 Get merch Get the Fecal Astrology mug. Buy Now — $32.95 See more merch