Source : Webster's Revised Unabridged Dictionary (1913)

Scamp \Scamp\ (sk[a^]mp), n. [OF. escamper to run away, to make
   one's escape. Originally, one who runs away, a fugitive, a
   vagabond. See {Scamper}.]
   A rascal; a swindler; a rogue. --De Quincey.

Scamp \Scamp\, v. t. [Cf. {Scamp},n., or {Scant}, a., and
   {Skimp}.]
   To perform in a hasty, neglectful, or imperfect manner; to do
   superficially. [Colloq.]

         A workman is said to scamp his work when he does it in
         a superficial, dishonest manner.         --Wedgwood.

         Much of the scamping and dawdling complained of is that
         of men in establishments of good repute. --T. Hughes.

Source : WordNet®

scamp
     n : one who is playfully mischievous [syn: {imp}, {monkey}, {rascal},
          {rapscallion}, {scalawag}, {scallywag}]

scamp
     v : perform hastily and carelessly