矯角殺牛

きょうかくさつぎゅう

kyoukakusatsugyuu

expression

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trying to straighten the horns of a bull, and killing it in the process, trying to correct a small defect and ruining the whole thing, the cure is worse than the disease(yojijukugo)

Related Kanji

矯	rectify, straighten, correct, reform, cure, control, pretend, falsify
角	angle, corner, square, horn, antlers
殺	kill, murder, butcher, slice off, split, diminish, reduce, spoil
牛	cow