EXAMPLES FROM THE WEB FOR KLUTZ
"I do not want cheap wisdom like that," cried Klutz, his eyes ablaze.
Klutz signified by a movement of his head that nothing was wrong at Lohm.
Axel was fairly certain that Klutz had set fire to the stables.
Klutz feebly tried to push the glass away, but Dellwig insisted.
But Klutz, who had shuffled along quickly, was nowhere to be seen.
"I never did believe in Klutz," said his wife, thinking of her apple jelly.
Klutz had denounced him, to save himself; of that he had not a doubt.
Klutz pressed his hands together, and looked round again for the train.
Klutz stared at him speechlessly after that first start, waiting for what would follow.
His expression while he did it was not flattering, but Klutz rarely noticed expressions.
1967, American English, from Yiddish klots "clumsy person, blockhead," literally "block, lump," from Middle High German klotz "lump, ball." Cf. German klotz "boor, clod," literally "wooden block" (cf. clot).