祸灭九族huò miè jiǔ zú

bring disaster on one's whole family and kindred
❍ 他指着排长手里的“告示”，小脸气得通红：“排长，‘～’是什么？”(金敬迈《欧阳海之歌》50)Red in the face,he pointed at the“proclamation”in Zhou's hand and asked:“What does'his intimates will suffer dire consequences’mean?”