0 past simple and past participle of swill
1 to cause a liquid to flow around or over something, often in order to clean it:
2 to drink, especially alcohol, quickly and in large amounts
The rubbish is swilled down the streets to a collecting point.
The term "mouth bath" implies that the liquid is passively held in the mouth rather than vigorously swilled around, which could dislodge a blood clot.
Half the amount was swilled around the mouth for two minutes and discarded, and the procedure repeated with the remainder.
One well-known character, known for a certain habit, swilled back his pint, strode up to the fire, and was about to spit with relish into it.
