執牛耳 [执－－]

Jyutping zap1 ngau4 ji5
Pinyin zhí niú ěr

Definitions (粵典–words.hk)
  1. x
Definitions (Wiktionary)
  1. verb, verb-object
    to be a leader
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）