A clacking sound suggesting mechanical motion, as of a railway train.(interjection)
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Use "clackety" in a sentence
"The machine was designed in 1949 and was intended to take some of the slog out of scientific calculations that previously were being done using the kind of clackety-clackety-kerchunk mechanical calculators you see in old movies."
""It's low-tech and simple," he said, adding that the action of the keys and stops "gives you noise all the time -- a kind of clackety-clack.""
"When you go to that lecture, to take notes that don't go clackety, clackety, clackety clack."