I'll get a rain check

I'll get a rain check

An expression indicating that one is refusing an offer or invitation but with the hope or promise that it can be postponed or accepted at a later date or time. I'm sorry, but I'll get a rain check for dinner this Saturday. Would next weekend work for you?
See also: check, get, rain
Farlex Dictionary of Idioms.
See also:
  • I'll take a rain check
  • take a rain check
  • if looks could kill
  • if looks could kill...
  • look daggers at, to
  • no questions asked
  • stuff you