ky

The word was first pick-up from the first letter of the Japanese word "空気が読めない," means don't read the atmosphere. The word was first used by middle school students in Japan. And when Abe, the former Prime Minister of Japan, failed in the Senate election and refused to resign, the politicians and the media accused the "prime minister KY," and soon became popular.

The word means that someone is senseless to others expression or real intention. The deep meaning is that everyone is doing something or talking about something, someone does something very strange and incompatible, and the person who “ky” have no sense on others feeling and destroy the atmosphere.

An example is like a group of people talking about the smell of perfume is good, someone says that it smells like sh**t, then he is KY.