> She'd say weird country sayings I learned from my own Dad, like 'kneehigh to a cricket.'

It's also fun when it happens in the other direction: child invents a totally new word, parents think it's funny and copy it, it becomes a word used only within that family, but perhaps it stays around long enough for some of the grandchildren to pick it up. But everyone has to pay attention not to use it outside the home because outsiders would be very confused by it. We have a few words like that.