Answer: Felching is to have oral sex in order to suck out the anus juices after urinating. The word f-e-l-c-h comes from the Old English word felac, which means “to suck”.

Some might call felching an elegant solution to a noxious bathroom setup or an ingenious form of recycling – both are levelheaded takes. One cannot discount the sexual excitement factor either – to enjoy someone’s shit before eating it is undeniably hot for some… But people looking for hard scientific facts should probably seek them elsewhere because, ultimately, there’s not much research backing up this pearl of wisdom.