The Qing dynasty edict issued in 1645 requiring all Han men to shave the front of their heads and wear a queue in the Manchu style, often summarized by the slogan 'Keep your hair and lose your head, or keep your head and lose your hair.'

to shave the head but keep the queue; specifically refers to the Qing dynasty decree requiring men to shave their forehead and wear their hair in a long braid