The line comes from Ma Baoguo, a self-styled tai chi master who became a national joke in China in May 2020 after amateur fighter Wang Qingmin knocked him down three times in under thirty seconds. In a video posted afterward, the 69-year-old complained that 'young people don't talk about martial ethics' and had sneak-attacked an old comrade. The scolding phrase exploded across Bilibili, Douyin and Weibo, remixed into songs, ghost-animal videos and reaction memes, and it remains the go-to sound for calling out any dishonorable trick.