Young people do not respect martial ethics. It comes from the character Ma Baoguo and is used to describe young people as being "fierce".

In a competition with young Wang Qingmin, Ma Baoguo was knocked to the ground three times by Wang Qingmin in 30 seconds, resulting in a direct KO. Afterwards, a video of Ma Baoguo with black eyelids and hair in January 2020 was circulated on the Internet, accusing: "Young people do not respect martial arts and sneak attack on me, a 69-year-old man. Traditional Kung Fu emphasizes 'point to point', If I hit it hard, he would lose.”

According to Ma Baoguo, this was in January 2020. The story between a young man who was treating his cervical spine and Ma Baoguo. It just happened that it spread widely after the match with Wang Qingmin, and it was in sharp contrast to Ma Baoguo's previous bragging that he wanted to rectify the name of traditional kung fu, so this sentence was also made fun of.

Extended information:

Mouse Tail Juice

"Mouse Tail Juice" is a homonym for 好自自事, and the meaning is the same, but it is more common than the idiom 好自自说. There's a lot of teasing in it.

"Mouse Tail Juice" also comes from Ma Baoguo. The 69-year-old Ma Baoguo issued a challenge to the 49-year-old folk boxer Wang Qingmin, threatening to rectify the name of traditional martial arts. In the end, the folk boxer KO'd him in 30 seconds. Afterwards, Ma Baoguo posted a paragraph A video criticizing Wang Qingmin, in which he said the famous saying "mouse tail juice".

Many friends use "rat tail juice" instead of "good for oneself". Generally, "good for oneself" means more blame, while "mouse tail juice" is just the opposite and is a joke.