What is oh no meaning?

"Oh no" is an expression used to express alarm, distress, or disappointment about an event, situation, or action. It is a colloquial phrase that is commonly used in informal conversation or social situations to express a range of emotions, such as annoyance, frustration, or shock. The phrase is often used in situations where something has gone wrong or unexpectedly, or as a response to bad news. It is an expression that can be used in many different contexts, depending on the tone and delivery of the speaker and their emotional state. The phrase "oh no" is often used in a playful or sarcastic manner to express humor or a lack of concern.