The large spiral shell of several species of sea conch, much used in making bangles, especially Turbinella pyrum.(noun)
To eat noisily; to champ or chomp(verb)
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Use "chank" in a sentence
"Speaking of the "chank" shell, that is the name given in the East Indies to certain varieties of the _voluta gravis_, fished up by divers in the"
"On Valentines Day I heard a band playing that chanky-chank mixtec music, and firecrackers going off, and the bells ringing madly at the church around the corner – It was a neighborhood fiesta."
"Notable among these was Ta-chank-pee Ho-tank-a, or His War Club Speaks Loud, who foretold a year in advance the details of a great war-party against the Ojibways."