be your own lookout
成語所屬單字lookout
be your own lookout — 慣用語
1. used to say that someone is responsible for their own problems or choices, espec
1.慣用語
釋義
是他自己要承擔的；是他自己的事
used to say that someone is responsible for their own problems or choices, especially when the speaker does not agree with them
例句
If Sari wants to quit school and travel the world, that's her own lookout.
Andrew refused to listen to our advice, so it's his own lookout if things go wrong.