KLUTZ

klutz

(noun) (Yiddish) a clumsy dolt

Source: WordNet® 3.1

Etymology

Noun

klutz (plural klutzes)

(US, pejorative) A clumsy or stupid person.

• "Mel, back home we'd call you a klutz."
Melissa: "Use a lot of Yiddish back in Texas, do you?"

• "Out of [one abortion doctor's] first six months of work, there are nine malpractice suits ... After it was apparent the guy was a klutz, they kept using him, and trying to cover for him, because they couldn't find another provider."

Proper noun

Klutz

A surname.

Source: Wiktionary