What does chug mean?
Chug is most commonly used as an informal verb for drinking greedily, steadily, or noisily, as in “chug down a glass of water.” The verb can also describe a person or vehicle moving with a heavy, labored rhythm, and an engine or train may be said to chug as it works. These uses share an emphasis on forceful, repetitive motion and a characteristic sound. As a noun, a chug can mean a substantial swallow or drink, while also referring to the deep, recurring noise of a machine. Although the drinking sense is strongly associated with informal North American and British English, the mechanical sense is widely understood in both regions and is frequently used figuratively for awkward or laborious progress.
To drink greedily, steadily, or noisily; to move with a heavy, rhythmic motion; or to emit a deep, recurring mechanical sound.
"The tractor chugged up the muddy track."
The drinking sense is informal, while the motion and mechanical senses can be literal or figurative.
A noisy drink or swallow, or the sound of an engine or other machine operating with a heavy, recurring rhythm.
"The engine gave a final broken chug and stopped."
The noun is less common than the verb and is especially associated with the sound of machinery.
The plural is used for separate instances of a heavy mechanical sound or for individual drinks or swallows.
"The engine emitted a series of uneven chugs before falling silent."
A determined drinker, a steam locomotive, and a stubborn old engine can all be said to chug, because each makes progress with a heavy, unmistakable rhythm.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does chug come from?
Chug is generally associated with the nineteenth century, but its precise origin is uncertain. Its sound-based character has often led etymologists to connect it with the noises of heavy movement, machinery, or swallowing. No secure cognate family can therefore be identified, and claims of a specific foreign source should be treated cautiously.
Related word forms
How chug is actually used
For human consumption, the word is usually informal and often suggests determination, lack of refinement, or drinking in large gulps. Its mechanical and figurative uses are more neutral.
Easily confused with chug
Chug means to drink steadily or move with a heavy rhythm, whereas chuck commonly means to throw something casually or discard it.