rapscallion

from WordNet (r) 3.0 (2006)

rapscallion
    n 1: a deceitful and unreliable scoundrel [syn: {rogue},
         {knave}, {rascal}, {rapscallion}, {scalawag}, {scallywag},
         {varlet}]
    2: one who is playfully mischievous [syn: {imp}, {scamp},
       {monkey}, {rascal}, {rapscallion}, {scalawag}, {scallywag}]

from The Collaborative International Dictionary of English v.0.48

Rapscallion \Rap*scal"lion\ (r[a^]p*sk[a^]l"y[u^]n), n. [See
   {Rascallion}.]
   A rascal; a good-for-nothing fellow. [Colloq.] --Howitt.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

42 Moby Thesaurus words for "rapscallion":
      bad boy, blackguard, booger, buffoon, bugger, cutup, devil, elf,
      enfant terrible, funmaker, hood, hoodlum, hooligan, imp, joker,
      jokester, knave, limb, little devil, little monkey, little rascal,
      minx, mischief, mischief-maker, pixie, practical joker, prankster,
      precious rascal, puck, rascal, rogue, rowdy, ruffian, scalawag,
      scamp, scapegrace, scoundrel, shyster, sneak, spalpeen, villain,
      wag

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