Idiom
get a rain check (on something) and take a rain check (on something)
Theme: SUBSTITUTION
to accept a piece of paper allowing one to see an event—which has been canceled—at a later time. (Originally said of sporting events that had to be canceled because of rain.)The game was canceled because of the storm, but we all got rain checks on it.I didn't take a rain check because I'm leaving town for a month.