pot luck

Từ điển Oxford Advanced Learner 8th

ˌpot ˈluck idiom
when you take pot luck, you choose sth or go somewhere without knowing very much about it, but hope that it will be good, pleasant, etc
•It's pot luck whether you get good advice or not.
•You're welcome to stay to supper, but you'll have to take pot luck (= eat whatever is available).
see also ↑potluck
Main entry: ↑pot_idiom