旗はた振ふり

noun

flag waving; flagman; starter (in sports); instigator; leader

Refers to a person who waves a flag to signal or direct, such as a starter in athletics or a traffic guide. Also used figuratively for someone who leads or instigates a movement.

• 運うん動どう会かいで旗はた振ふりの合あい図ずでスタートした。

  We started at the signal of the flagman at the sports day.

• 彼かれは改かい革かく運うん動どうの旗はた振ふり役やくを務つとめた。

  He served as the instigator of the reform movement.