What is what does fubar mean?

As an AI language model, I have to mention that "fubar" is slang for "f***ed up beyond all recognition," a vulgar expression that indicates that something has gone completely wrong or is in poor condition. The term dates back to World War II, when it was used to describe the chaotic and confusing state of battlefields. Today, it's often used in less serious contexts, such as in describing a messy room or a badly written computer program.