puck·ish /ˈpʌkɪʃ/
  (a.)像小妖精的;惡作劇的;任性的
  Puck·ish, a.  Resembling Puck; merry; mischievous. “Puckish freaks.”
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  puckish
       adj : naughtily or annoyingly playful; "teasing and worrying with
             impish laughter" [syn: impish, implike, mischievous,
              pixilated, prankish]