牛津電影裡 100%
事情失敗,害了自己
if a plan, etc. blows up in your face, it goes wrong in a way that causes you damage, embarrassment, etc.
If you tell everyone about the stock deal, it will blow up in your face.
And now it's going to blow up in your face.
釋義來自《牛津高階英漢雙解詞典》第 9 版