What is another word for swill down?
Pronunciation: [swˈɪl dˈa͡ʊn] (IPA) 
Swill down is a phrase that is often used to describe drinking large amounts of liquid quickly and without much thought. However, there are many other words that can be used to describe this action. Some synonyms for the phrase swill down include gulp, chug, guzzle, down, quaff, inhale, and drain. Each of these words has a slightly different connotation, but they all describe the same basic action of quickly consuming a large quantity of liquid. Whether you are enjoying a cold beer on a hot summer day or chugging a glass of water after a workout, there are plenty of synonyms you can use to describe the satisfying feeling of swilling down a refreshing drink.
