ˋㄈㄚyìfāㄅㄨˋㄎㄜˇbùkěㄕㄡˊshōushí

一发不可收拾
yīfā bùkě shōushiㄧ ㄈㄚ ㄅㄨˋ ㄎㄜˇ ㄕㄡ ˙ㄕ
  1. 事情一發制止處理地步 已經一發不可收拾」。

things that have happened can hardly be controlled, to get out of hand