In a garbled translation, it literally means sucking on butter. In fact, more like a mouthwash.
Put a tablespoon of vegetable oil in your mouth and rinse it between your teeth for 20 minutes until the oil turns into a white emulsion. It is strictly forbidden to swallow this thing.
From somewhere in the wilds of alternative medicine. Enthusiastic people believe that toxins and parasites are sucked out through the mouth. In fact, nothing is pulled out through the mucous membrane of the mouth. This was immediately clear, so the technique of sucking butter very quickly jumped from the area of general health improvement to the area of hygiene.
Well, that is, everyone knows about the century-old history of antibacterial mouthwash with essential oils. So they tried to adapt the sucking of oil here, too.
At first, dentists were surprised at such a neighborhood, and then slowly different dental associations began to give refutations and very carefully declare that there was no benefit to the mouth from this. At the same time, the dental associations gave an amendment that most likely there was no harm. Probably because this outlandish procedure looks like a religious ceremony. And such things are not accepted to criticize loudly.
Well, this nonsense has taken its place of honor among dental recommendations (as useless) and at the same time feeds alternative people who are ready to promote everything that is not prohibited.
Didn't you… rinse your mouth in the morning?