DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   shill
       n 1: a decoy who acts as an enthusiastic customer in order to
            stimulate the participation of others
       v 1: act as a shill; "The shill bid for the expensive carpet
            during the auction in order to drive the price up"