Definition: Yok1 (Japanese: すず) is a term used to express surprise, amazement, or disbelief in Japanese culture. It is derived from the word "yo", which means surprise. Definition of Yok1: 1. The word 'yok1' comes from the word 'yoru', which means surprise. 2. In Japanese culture, people often use it as a way to express astonishment or shock. 3. When someone says that they are shocked or surprised by something, they are using "yo", which is the initial syllable of 'yoko'. 4. This expression can also be used in more formal contexts such as in a greeting or when someone is expressing their surprise. For example: - "Yo, it's raining outside!" would mean that you're surprised or shocked by the rain. - "It was an unusual experience for me." would show that you were shocked by something unexpected or out of the ordinary.