一把手 The first hand. The head of a unit or organization.
拍板 To strike the board. In old trading houses, a sale was sealed by striking a wooden board. Today it means that the person in charge makes the final decision.
一言堂 The hall of one word. Once a shop’s sign for fixed prices. Today a leader who decides alone.
官大一级压死人 An official one rank higher crushes a person to death. In 2018, the Party’s discipline newspaper used the phrase to criticize an official who pulled rank.