Swig/swɪɡ/ Definition 1 of 2Pro Tip 1/3Informal Usage Used in casual conversations, not in formal writing or speeches. After hiking, she took a hearty swig of juice. Pro Tip 2/3Not for Sipping 'Swig' implies more volume and less refinement than 'sip' which is daintier. At the campfire, everyone took a swig from the shared flask. Pro Tip 3/3Usually Liquids Only Typically refers to consuming liquids, not solids. During the timeout, the player took a quick swig of water.