WikiPedia definition of "cackly"
... to notes from a lecture at Stanford Law School given by John Hanft, the Director of the Witkin Legal Institute, Bernard E. Witkin was "a short, rotund gentleman with a cackly laugh ...
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The Sri Lanka Frogmouth is best located at night by its song, which is a loud descending cackly and frog-like series of Klock-klock-klock-klock-klock calls.
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