dirty linen
dirty laundry

Many women still want to keep their dirty laundry inside.

If they had come two days earlier, they'd have found a week's worth of dirty laundry.

You don't air a team's dirty laundry to the media.

Then baseball's dirty laundry would be out in public for all to see.

Why hang out the department's dirty laundry for all to see?

And now, at last, it is time for dirty laundry.

She didn't want to air her dirty laundry in front of a stranger.

It'll stop the children coming back to stay, with their bags of dirty laundry.

Of course, whenever you're having family problems, it's always best to air your dirty laundry in a magazine.

Do we really want to air our dirty laundry before the entire world?