DuckCorp Dico

Found one definition

1.                 From English - German Ding/FreeDict dictionary ver. 1.9-fd1:
                   
   
   
                   
                     
   tholes /thˈəʊlz/
   Ruderdollen <pl>, Dollen <pl>, Rudergabeln <pl>, Ruderaufnahmen <pl>
      Synonyms: oarlocks, crutches, rowlocks
    see: thole, oarlock, crutch, rowlock