DuckCorp Dico

Found one definition

1.                 From The Collaborative International Dictionary of English v.0.48:
                   
   
   
                   
                     
   Youngster \Young"ster\, n.
      A young person; a youngling; a lad. [Colloq.] "He felt
      himself quite a youngster, with a long life before him." --G.
      Eliot.
      [1913 Webster]