DuckCorp Dico

Found one definition

1.                 From English - German Ding/FreeDict dictionary ver. 1.9-fd1:
                   
   
   
                   
                     
   schlumps /ʃlˈʌmps/
   Wermutbrüder <pl>, Pennbrüder <pl>, Gammler <pl>
      Synonyms: slobs, slummocks
    see: slob, slummock, schlump