ㄓㄨㄚㄅㄧㄢˋ˙zhuābiànzi

抓辫子
  1. 比喻抓住別人缺點錯誤當作把柄 大家暢所欲言我們抓辮子打棍子」。

to grab sb by the pigtail, to seize on weak points, to exploit the opponent's shortcomings
Jemandes Fehler ausnutzen (Werk)​