Source : Webster's Revised Unabridged Dictionary (1913)

Puppy \Pup"py\, n.; pl. {Puppies}. [F. poup['e]e doll, puppet.
   See {Puppet}, and cf. {Pup}, n.]
   1. (Zo["o]l.) The young of a canine animal, esp. of the
      common dog; a whelp.

   2. A name of contemptuous reproach for a conceited and
      impertinent person.

            I found my place taken by an ill-bred, awkward puppy
            with a money bag under each arm.      --Addison.

Puppy \Pup"py\, v. i. [imp. & p. p. {Puppied}; p. pr. & vb. n.
   {Puppying}.]
   To bring forth whelps; to pup.

Source : WordNet®

puppy
     n 1: young dog
     2: an inexperienced young person [syn: {pup}]