- 1[intransitive] (+ adv./prep.) to move making the sound of an engine running slowly The boat chugged down the river.
- 2 [transitive] chug something (slang) to drink all of something quickly without stopping
NAmE//tʃʌɡ//Verb Forms present simple I / you / we / they chug
he / she / it chugs
past simple chugged
-ing form chugging