雞毛當令箭 [鸡－当－－]

Jyutping gai1 mou4 dong3 ling6 zin3
Pinyin jī máo dàng lìng jiàn

Definitions (Wiktionary)
  1. phrase, idiomatic
    to treat one's superior's casual remarks as an order and to make a big fuss about it