"scratch that" 的定义和意义

What is the origin of the idiom "scratch that" and when to use it?

The exact historical origin of the idiom "scratch that" is not precisely documented, but it likely emerged as a way to suggest "erasing" or "revising" a statement or decision, similar to how one might scratch out or erase a written note or word. This idiomatic expression has evolved over time and is now commonly used in everyday language to indicate the cancellation or retraction of something previously stated or planned.