DuckCorp Dico

Found one definition

1.                 From English - German Ding/FreeDict dictionary ver. 1.9-fd1:
                   
   
   
                   
                     
   fatso /fˈatsəʊ/
   Fettsack <masc>, Fettwanst <masc>, Dickwanst <masc>, Fettmops <masc>, Fettkloß <masc> [ugs.]  [pej.]
      Synonyms: fatty, butterball
    see: fatsoes, fatties, butterballs