perish the thought
打消那个念头；万万不能这样想
口语·表达强烈反对
英文释义
used to dismiss or reject a thought or idea as being unthinkable or undesirable.
例句
If you think I'd cheat on the test, perish the thought!
典故来源
源自18世纪英语，字面意为‘让这个想法消失’，用于强烈否定或拒绝不愉快的念头。