stuff (someone)/that!

A rude and angry expression of disgust or dissatisfaction with someone or something, especially indicating that one doesn't want to be associated with the person or do the thing in question. A: "The manager said all staff have to be in tomorrow at 6 AM to help with the stock check." B: "Stuff that! There's no way I'm coming in that early!" She treated you like garbage, and now she expects you to help her with the business? Stuff her!

stuff him, that, etc.

(spoken, informal) used to show strong dislike of somebody or a refusal to do what they want: ‘Switch that radio off, I’m trying to work!’ ‘Stuff you, I’ll do what I like!’ ♢ He wants me to do extra work this week. Well, he can stuff it!