From English - German Ding/FreeDict dictionary ver. 1.9-fd1:
oaf /ˈəʊf/ Grobian <masc>, Rohling <masc>, Rüpel <masc>, Lümmel <masc>, Flegel <masc>, ungehobelter Kerl <masc>, Klotz <masc> [Norddt.] , Lackel <masc> [Bayr.] [Ös.] [grober] , Lackl <masc> [Bayr.] [Ös.] Synonyms: boor, churl