air dirty linen in public
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.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
air one's dirty linen in publicand wash one's dirty linen in public
Fig. to discuss private or embarrassing matters in public, especially when quarreling. (This linen refers to sheets and tablecloths or other soiled cloth.) They are arguing again. Why must they always air their dirty linen in public? She will talk to anyone about her problems. Why does she wash her dirty linen in public?
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.