DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   barker
       n 1: someone who stands in front of a show (as at a carnival)
            and gives a loud colorful sales talk to potential customers
       2: informal terms for dogs [syn: pooch, doggie, doggy,
          barker, bow-wow]