For instance, Rachel Anne at Home Sanctuary uses the term "company girl" in her family. When I was growing up, my sister would accuse my brother of "eating it all" if he ate the last cookie. Never mind that she had eaten most of the cookies and that he was just trying to get one before they were gone. In her mind, he ate them all. So, the phrase "he/she ate it all" became a family phrase that is still used today. If you are caught with the last bite of anything, you ate it all.
I also picked up the habit of saying "it deserves you right" instead "it serves you right," and I am incapable of saying it correctly now.
There are many other stories that I could share