心猿意馬 [ㄒㄧㄣ ㄩㄢˊ ㄧˋ ㄇㄚˇ; xin1 yuan2 yi4 ma3]
  lit. heart like a frisky monkey, mind like a cantering horse (idiom); fig. capricious (derog.)
  to have ants in one's pants
  hyperactive
  adventurous and uncontrollable
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  心猿意馬
  しんえんいば
  noun (common) (futsuumeishi)
  (being unable to control) one's worldly desires and passions
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