a large sea conch found off the shores of India and Sri Lanka, used as a horn or to make ornaments
chank in American English
(tʃæŋk)
intransitive verb
(chiefly in New England and West Midland US dialect)
to eat noisily or greedily
Word origin
[1870–75; expressive v. akin to champ1, chomp]This word is first recorded in the period 1870–75. Other words that entered Englishat around the same time include: Mafia, Victorian, fifth wheel, immobilize, onshore