stuff it, them, you, etc. idiom mainly UK slang
（用于表示生气、不赞成或不服从）去它的／去他们的／去你的（等等）
used to show anger or disapproval about a situation or person, or that you refuse to obey someone
He's expecting us to work late. Well, stuff that/him! “他希望我们加班。”“没门儿！”
"Should we clean up now?" "No, stuff it! Let someone else do it!" “我们现在要收拾吗？ ”“不用，管它呢！”