( rain checks)
1.
If you say you will take a rain check on an offer or suggestion, you mean that you do not want to accept it now, but you might accept it at another time.
Can I take a rain check on that?
N-SING
2.
A rain check is a free ticket that is given to people when an outdoor game or event is stopped because of rain or bad weather, so that they can go to it when it is held again. ( AM )
N-COUNT