The Scouse British dialect has a nice term for this: "Geg out". As opposed to "Fred is gegging in", used when someone is trying to implicate themselves or become part of the group/conversation.
Someone involving themselves when they shouldn't be? Two syllables: Geg. Out.
No idea where it comes from but I heard it a lot in my youth. Forsomereason.

It's not a "no one asked you", but it is an idiom. As you can probably guess, it means more "don't help people working against your interests".

So, you'd say something like that to a pro-ICE minority person, for example.

👉👈

Depends on the region. In my native it was popular to say ебало завали, which loosely translates into "collapse your mouth" where mouth is used in a sense where it's an organ for penetration during sex.

Australia: Nunya

Russian here. I've never heard this phrase in my life before. Maybe it's local, but definitely not common.

I guess 'Nobody asked you' isn't English?

Chilean Spanish? that's just a common Spanish saying

I'm from Chile and I have never heard of that one. But a lot of: y a voh, ¿quien te movió la jaula, culiao?

It's funny that the Dutch version is pretty close to what the English one should be: bemoei je met je eigen zaken, literally mind your own business.

In Vienna, we say "oida waunst laung deppat bist daun hauri da a watschn owe dass da viatzehn dog da schädl wogglt!"and I think that’s beautiful.