故家子弟
gùjiā zǐdì
[old family and his descendants] 昔日官宦人家的子弟
王生独自回进房来,对刘氏说道:“我也是个故家子弟,好模好样,不想遭这一场,反被那小人逼勒!”说罢,泪如雨下。——《初刻拍案惊奇》