Meaning of “swig” - Learner’s Dictionary

swig

verb [ T ] us uk /swɪɡ/ present participle swigging, past tense and past participle swigged informal

to drink something, taking a lot of liquid into your mouth at a time

swig noun [ C ]

He took a swig of his beer and carried on with the story.

(Definition of “swig” from the Cambridge Learner’s Dictionary © Cambridge University Press)