klutz
From Longman Dictionary of Contemporary Englishklutzklutz, clutz /klʌts/ noun [countable] American English CLUMSYsomeone who drops things and falls easily —klutzy adjectiveExamples from the Corpusklutz• Tom's a real klutz when it comes to baseball - even if he hit the ball he'd trip on the way to first base.• "Look what you've done, you silly klutz!" Nathan said angrily.Origin klutz (1900-2000) Yiddish klotz, klutz, from German klotz “large piece of wood”