きも
肝
　
を
　
つ
　
ぶ
　
す

expression, Godan verb

Idiomatic expression.
  1. to be flabbergasted, to be amazed, to be astounded, to be stunned.

Variations

Pronunciation Kanji Kana Is Common
きも
肝
　
を
　
つ
　
ぶ
　
す
 肝をつぶす きもをつぶす
きも
肝
　
を
つぶ
潰
　
す
 肝を潰す きもをつぶす

Contained Kanji Breakdown

liver, pluck, nerve
カン　きも (Late Jr. High, N1)
month, moon
つき　ゲツ　ガツ (1st, N5)
dry, parch, ebb
ひ.る　カン　ほ.す (6th, N2)