It means, 'whatever' 'so what', 'what you just said makes no sense at all'. She says it all the time to the Middlest. A lot to P-Daddy, and yes, even to me. The Littlest kind of lives in a permanent state of 'n'importe quoi' as far as she's concerned.
I don't care if I get the attitude, eye rolling, 'whatever'. Because I am proud of them. All three. Remarkably so. Because they started French school at the end of the year, two. years. ago., they've done this end of year thing three times. And all of this 'whatever' has reminded me of this post I wrote at the end of our first May, June and July of school.
That's what makes a parent feel proud and happy. All the rest is just 'n'importe quoi.'.