Meaning: The idiom "You're history" means that someone is no longer important, relevant, or wanted. It is often used in a dismissive way, especially when ending a relationship, friendship, or association with someone. It can also mean that a person is in serious trouble. Origin: The phrase comes from the idea that history refers to things that happened in the past and are no longer active or important in the present. It became popular in the late 20th century, especially in movies and TV shows, as a dramatic way of saying someone is done or no longer matters.

Example sentences:

Romantic context: "After I caught him lying to me, I told him, ‘That’s it, you’re history!’"

Workplace context: "If you keep coming late to work, you’re history. The boss won’t tolerate it anymore."

Sports context: "Once our star player steps on the field, the other team is history!"