CHUG
chug
(noun) the dull explosive noise made by an engine
chug
(verb) make a dull, explosive sound; “the engine chugged down the street”
Source: WordNet® 3.1
Etymology 1
Noun
chug (plural chugs)
A dull, fairly quick explosive or percussive sound, as if made by a labouring engine.
A large gulp of drink.
A homemade Cuban boat, built to carry emigrants to the USA, and often abandoned upon arrival.
Verb
chug (third-person singular simple present chugs, present participle chugging, simple past and past participle chugged)
(intransitive) To make dull explosive sounds.
(intransitive) To move or travel whilst making such sounds.
(transitive, slang) to drink a large amount (especially of beer) in a single action/without breathing; to chugalug. People usually chant this at the person who is drinking.
Synonyms
• (drink): See also drink
Etymology 2
blend of chihuahua and pug
Noun
chug (plural chugs)
A dog; a cross between a pug and a chihuahua.
Etymology 3
blend of charity and mug
Verb
chug (third-person singular simple present chugs, present participle chugging, simple past and past participle chugged)
(transitive, UK slang, derogatory) To solicit charitable donations on the street, particularly in a persistent manner.
Etymology 4
Noun
chug (plural chugs)
(derogatory, racial slur) A person of Native American descent.
Source: Wiktionary