My native French speaking mom will occasionally address my non-french speaking husband in French without realizing unless I tell her and even then she only knows because I’ve told her.

Yes. It’s always a good question to ask yourself:

Would you rather be effective or be right?

Wait really?? That makes so much more sense 🤣

I’m dying now because that’s literally what I thought when my extended family says it.

Not quite an idiom but term of endearment: petit chou in French is little cabbage but is often used for young kids…