Chugging

[chuhg] /tʃʌg/

noun
1.
a short, dull, explosive sound:
the steady chug of an engine.
verb (used without object), chugged, chugging.
2.
to make this sound:
The motor chugged.
3.
to move while making this sound:
The train chugged along.
[chuhg] /tʃʌg/ Slang.
verb (used with object), chugged, chugging.
1.
.
verb (used without object), chugged, chugging.
2.
to drink something in large gulps:
to chug on a bottle of beer.
noun
3.
a large gulp or swallow:
He finished his beer in two chugs.
/tʃʌɡ/
noun
1.
a short dull sound, esp one that is rapidly repeated, such as that made by an engine
verb chugs, chugging, chugged
2.
(intransitive) (of an engine, etc) to operate while making such sounds
n.

1866, echoic of a working steam engine. As a verb, from 1884. Related: Chugged; chugging. Drinking sense attested by 1940s (chug-a-lug), probably imitative of the sound of swallowing.

verb

To drink very quickly and in volume, as alcohol: chugged six milks at lunch

verb

To move along, esp slowly and laboriously: The USS Saratoga came chugging up the Delaware

[1900+; echoic of an engine, esp a steam engine, operating]
chug-a-lug