Traditionally the day after Christmas Day, on December 26th is called Boxing Day. It is celebrated in Canada, United Kingdom, Australia and New Zealand. Much like Black Friday in the USA, Boxing Day is now known as a shopping holiday.
In the old days, servants in England would receive presents or money from their employers, as a form of thanks. This day is also called the Feast of St. Stephen which falls on the 26th of December.
In 1976, I was in England on a student exchange in Northern England in Lancashire area. The city I was living in was called Blackpool/St.Annes and the neighbors on the street where I was staying brought over boxes of goodies such as cakes and candies for the Host family. I thought the “term” Boxing Day – was for the boxes exchanged between friends and neighbors. So as you can see the Boxing Day can mean several things to many. Traditions change over time; it may have started out as one thing and then changed to commemorate something else. So – however you celebrate Boxing Day – there will always be the inevitable argument of the original meaning.