What do you think this means?

[Moonsun21]

While having a disagreement with dh, he tells me 'to get back in your box'.
Anyone's opinion on what he meant by this?

...what like, a toaster?

I dunno, I wouldn't like it. To me it sounds like talking to someone like they are an appliance that is on the fritz and not a person.

From ChatGpt which sums it up nicely

The phrase "get back in your box" is an idiomatic expression, often used in British English, that means:
"Know your place" or "stop overstepping your boundaries."
It’s typically used to put someone down or put them back in line when they’re seen as being too bold, arrogant, or out of line—especially if they’re challenging authority or speaking out of turn.
Tone & Context:

• Usually sarcastic, dismissive, or even condescending.
• Can be light-hearted in friendly banter, but also cutting or insulting in serious settings.

Know your place basically. He doesn’t respect you or your opinions.

His finances or family finances?

It can mean shut up or mind your own business

Well it's our joint finances, but he apparantly sees it as his money as he earns a lot more than me, and doesn't need to discuss with me before making a large purchase.
This isn't the first time he has made this kind of comment.

Well if it’s joint finances I’d be pointing out it is my business because the money I’ve contributed is also in that pot. Unless he freely lets you have the same right to make large purchases with no discussion?

That whatever you say he gas no interest in.

It's a horrible phrase: it means "stay in your lane" (or don't argue back/know your place). It should never be used to a spouse. I would never use it other than in jest.

Is he normally an overbearing twat?