Chug-a-lugs is a colloquial expression that is mostly used to describe the act of drinking or consuming something in a rapid or enthusiastic manner. Though this term is widely used, there are several synonyms that convey a similar meaning. Some of the alternative expressions that can be used instead of chug-a-lugs include guzzle, gulp, quaff, swill, slurp, and sup. All of these terms relate to the act of consuming a liquid, but they differ in their level of speed and enthusiasm. Therefore, it is essential to choose a synonym that best describes the way in which the liquid is being consumed.