From English - German Ding/FreeDict dictionary ver. 1.9-fd1:
klutz /klˈʌts/
[Am.] Trampel <masc>, Trampeltier <neut>, Lackel <masc> [Süddt.] [Ös.] , Galöri <masc> [Schw.] , Elefant im Porzellanladen [geh.] [pej.]
Note: schwerfällig-unbeholfene Person
Synonyms: lump, clumsy oaf, clumsy clot, galoot, stumblebum, lummox, lubber
see: lumps, clumsy oafs, clumsy clots, galoots, stumblebums, klutzs, lummoxes, lubbers