What is that's all she wrote?

"That's all she wrote" is an idiom, specifically a colloquialism, meaning that something is finished, over, or that there is nothing more to add. It's often used to indicate the end of a story, endeavor, or even someone's life. The phrase implies finality and often a sense of inevitability.

Essentially, it's a dramatic way of saying <a href="https://www.wikiwhat.page/kavramlar/the%20end">"the end"</a> or <a href="https://www.wikiwhat.page/kavramlar/game%20over">"game over"</a>. While it can be used in a neutral context, it's often used with a slightly negative or resigned tone. The origin of the phrase is thought to derive from military usage during World War II, specifically the end of a letter written by a soldier, implying that they had said all they could or that there was nothing more to tell.