What do you mean by Yin people?

Yin people, its original intention should refer to some ancient people who looked at Feng Shui, invited gods and did white things. There are several other meanings:

The so-called Yin people are those who work for the terrifying among the dead. This kind of person, like ordinary people on the surface, needs to eat and sleep, but can talk to ghosts. There is only one way to tell them apart, that is, when they sleep, their shoes are under the bed and their toes are inward. From Tomb Raider Notes 2: The Tree of Terror in Qinling Mountains

Yin people are women. The multi-eyed monster of Journey to the West said to Spider Spirit, "What did you want to say to me in the morning? Cocoa's pills today, this medicine is taboo to see Yin people, so I didn't answer you. "

Folk refers to ancient eunuchs.

In reality or online games, it refers to using some intrigues to calculate people.

There is a short thriller called "Yin People".

Due to the development of modern network culture, "Yin people" are also used in some small groups. Especially the inner man show, sometimes the abdomen is black. Someone who plays a "cooling" role in group activities. Such people often indulge in their own world in group activities, making people around them feel embarrassed and uneasy. They have the quality of quickly cooling down a hot topic.

People born on cloudy days when the moon is cloudy and the sun is cloudy.