What is the origin of the idiom "for the thousandth time" and when to use it?

The idiom "for the thousandth time" is an idiomatic expression that does not have a specific historical origin. It simply uses the number "thousandth" figuratively to emphasize the repetition or frequency of an action or statement. Similar expressions like "for the umpteenth time" and "for the millionth time" are also used for this purpose. This idiomatic phrase is used to express annoyance when they need to repeat something many times. It underscores the idea that the action or statement has occurred repeatedly and is often met with frustration.