家醜不可外揚 [ㄐㄧㄚ ㄔㄡˇ ㄅㄨˋ ㄎㄜˇ ㄨㄞˋ ㄧㄤˊ; jia1 chou3 bu4 ke3 wai4 yang2] lit. family shames must not be spread abroad (idiom) fig. don't wash your dirty linen in public ◄ ►