air (one's) dirty linen in public

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air (one's) dirty linen in public

To discuss very private, personal matters, especially that which may be embarrassing, in public or with other people. It always makes me uncomfortable when John starts going into all his personal problems whenever our friends get together. I just wish he wouldn't air his dirty linen in public like that. People have an unnatural fixation on the personal lives of celebrities, but I don't see why they should be expected to air their dirty linen in public.
See also: air, dirty, linen, public