chug 词源(Etymology)英文版
chug (n.)
[chug 词源字典]
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.[chug etymology, chug origin, 英语词源]