klutz
Concise Oxford English Dictionary © 2008 Oxford University Press:
klutz /klʌts/
▶noun informal, chiefly N. Amer. a clumsy, awkward, or foolish person.
– derivatives
klutzy adjective .
klutzy adjective .
– origin 1960s: from Yiddish klots ‘wooden block’.
'klutz' also found in these Oxford entries:

