KLUTZ

PRONUNCIATION: (kluts)

MEANING: noun: A clumsy or stupid person.

ETYMOLOGY: From Yiddish klots (wooden block), from German Klotz (wooden block). Earliest documented use: 1968. Don’t confuse this word with kludge. A Yiddish synonym is schlemiel.
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KLOTZ - what stops you from bleeding

KLUTO - a midwestern dog is following a New York City dog and has misadventures (from a 1971 movie)

KLETZ - a bumbling Yiddish musician trying to play the clarinet