push your luck
US /pʊʃ jʊər lʌk/
UK /pʊʃ jʊər lʌk/
1.
to try to get more than what you have or are offered, with the risk of losing everything
:
•
You've already won a small prize; don't push your luck by playing again.
•
I think I'll stop now, I don't want to push my luck.