Definition
Used to express strong determination not to do something or not to allow someone else to do something.
我倖可不…
I'll be hanged if I ever clean up his mess again!
要我再帮他收拾烂摊子，门都没有！
I'll be hanged if I apologize to him; he's the one who should be apologizing.
要我向他道歉，休想！应该道歉的是他。
I'll be hanged if I ever do anything for him again.
要我再次为他做任何事，绝不可能！