The Collaborative International Dictionary of English v.0.48:

Cadger \Cadg"er\, n. [From Cadge, v. t., cf. Codger.]
   [1913 Webster]
   1. A packman or itinerant huckster.
      [1913 Webster]

   2. One who gets his living by trickery or begging. [Prov. or
      Slang] "The gentleman cadger." --Dickens.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Cadger \Cadg"er\, n. [OF. cagier one who catches hawks. Cf.
   Cage.] (Hawking)
   One who carries hawks on a cadge.
   [1913 Webster]

WordNet (r) 3.0 (2006):

cadger
    n 1: someone who mooches or cadges (tries to get something free)
         [syn: moocher, mooch, cadger, scrounger]

Moby Thesaurus II by Grady Ward, 1.0:

39 Moby Thesaurus words for "cadger":
   beggar, bum, bummer, chapman, cheap-jack, cheap-john, colporteur,
   coster, costermonger, coupon clippers, drone, freeloader, hawker,
   higgler, hobo, huckster, idle rich, leisure class, loafer,
   lounge lizard, lumpen proletariat, mendicant, mendicant friar,
   mendicant order, moocher, nonworker, panhandler, parasite, peddler,
   rentiers, schnorrer, scrounger, sidewalk salesman, spiv, sponger,
   the unemployable, the unemployed, tramp, vendor