From English - German Ding/FreeDict dictionary ver. 1.9-fd1:
ocker /ˈɒkə/
[Austr.] Rowdy <masc>, Randalierer <masc>, Rockertyp <masc>, Halbstarker <masc>
Synonyms: lout, yahoo, yob, yobbo, lug, larrikin, hoon
see: louts, yahoos, yobs, yobbos, lugs, larrikins, hoons, ockers
