When subtitling is usually YNS “you are not serious.” It is a slang word used to show distrust, satire, or unstable shock in response to something fantastic, funny, or derogatory. Tone can vary from humorous to important depending on the reference. In general, Gen-Z and millennial calls are often used to keep chatting randomly and expressively. For example, if one makes a wild claim, a simple “desire can be the perfect sarcastic response.