Take a rain check
English Idiom
Meaning: To decline an invitation or offer but suggest or imply that you might accept it at a later time. It's a polite way of postponing an engagement.
Origin: The phrase 'take a rain check' originates from the 19th-century American baseball scene. When games were postponed due to rain, spectators were given a 'rain check'—a ticket allowing them to attend a rescheduled game. The term quickly spread beyond baseball and became a popular way to defer acceptance of an offer or invitation.
