hijacked

An event or situation that's hijacked means it has been taken over and controlled by someone or something else. This can happen to any plan or activity.

Hijacking is often used in everyday language to describe when things don't go as planned. For example, you might have a meeting scheduled at the office, but then your boss decides to use it for her own presentation, so she hijacks the time and turns the meeting into something else. This can also happen with events like concerts or festivals where someone unexpected takes over the stage or program.

The word "hijack" originally comes from aviation, where a plane is taken control of by an unauthorized person, usually to force it to go somewhere against its intended route. In this sense, hijacking means taking command away from the original people in charge and using it for your own purposes. But in general language, the word has been adapted to describe any kind of takeover or disruption.