rainy day, a

a rainy day

A time or period of unforeseen difficulty, trouble, or need. I know you want to buy a new TV with your bonus, but you should really save that money for a rainy day. I put aside a portion of my wages each month for a rainy day.
See also: rainy
Farlex Dictionary of Idioms.

rainy day, a

A time of need or trouble, as in We knew a rainy day would come sooner or later. This idiom is often used in the context of save for a rainy day, which means to put something aside for a future time of need. [Late 1500s]
See also: rainy
The American Heritage® Dictionary of Idioms by Christine Ammer.
See also:
  • a rainy day
  • rainy
  • save (something) for a rainy day
  • save for a rainy day
  • save, keep, etc. it for a rainy day
  • hold (something) back for a rainy day
  • keep (something) for a rainy day
  • put (something) aside for a rainy day
  • in the money
  • go into service