come out in the wash, it will

come out in the wash, it will

A problem will be solved or difficulties will disappear. For example, Don't worry about the fight you got into-it'll all come out in the wash. Cervantes had this metaphoric use of laundry for cleaning up a mess or difficulty in Don Quixote ( Todo saldrá en la colada) and it has been repeated ever since. [Early 1600s]
See also: come, out, will