Amateur hotwife douche colon cleaning and rectal water spraying before anal sex. Rectal douching is the act of rinsing the rectum with intent to clean it, typically in preparation for anal sex. An instance of this rinsing or a tool used to perform the rinse may be called a rectal douche . The difference between a douche and an enema is the amount of water they hold and how far into the anus they clean. iquid, typically water, is inserted into the rectum by means of some tool. After some time, the water is expelled in the manner of a routine bowel movement, and in the process the rectum elimina... Show more