Definitions

1. noun

a sudden drink from a bottle or other container, especially of a spirits or a liquid refreshment

“After a long hike, he took a swig of water from his canteen.”

2. verb

to take a quick drink, especially from a bottle or other container

“She swigged down the rest of her soda and threw the can away.”

3. verb

to take a small amount of something, especially a drink, quickly

“He swigged some coffee and headed out the door.”