屁へをひって尻しり窄つぼめ

expression

closing the stable door after the horse has bolted; too little, too late

Proverb meaning it's pointless to take precautions after something has already gone wrong. The literal image is squeezing one's buttocks after farting.

• 事じ故こが起おきてから安あん全ぜん対たい策さくをしても、屁へをひって尻しり窄つぼめだ。

  Implementing safety measures after an accident is like shutting the stable door after the horse has bolted.

• テストが終おわってから勉べん強きょうしても、屁へをひって尻しり窄つぼめだよ。

  Studying after the test is over is too little, too late.