when push comes to shove
US /wen pʊʃ kʌmz tə ʃʌv/
UK /wen pʊʃ kʌmz tə ʃʌv/

1.
到了关键时刻, 当真正需要时
when a situation becomes urgent or difficult; when it really matters
:
•
When push comes to shove, he's always there for his family.
到了关键时刻,他总是会支持他的家人。
•
We can talk about it now, but when push comes to shove, we'll see who's really committed.
我们现在可以谈论它,但到了关键时刻,我们就会知道谁是真正投入的。