As a Canadian, I can tell you that nothing confuses Americans like the concept of Boxing Day (December 26).
In Britain, Canada, Australia and most of the English-speaking world, it is usually observed as a holiday. The origin of the name is obscure, but it is believed to have something to do with opening “poor boxes” in Churches on December 26 (presumably after the people attending church on December 25 had been moved to generosity) and distributing the proceeds to those less fortunate.
But oddly enough, Americans by and large know nothing about this holiday or its name.
I have also noticed in recent years that the day after New Year’s Day, January 2, is increasingly observed as an extra day off work or as a special shopping day.
So let’s start something, shall we? I need your help here. Let’s call January 2 “Wrestling Day”. But don’t make a joke of it. Say it very seriously, as if it had always existed.
For example, the stores in Canada are mostly closed today but tomorrow, January 2, my spouse and I will be going shopping. I just made out a list and very seriously wrote “Things to buy on Wrestling Day”. I will make a effort in each store I go to tomorrow to use the term in a nonchalant manner.
If only a few people do it, it could snowball and actually become a term in English. Decades from now, etymologists would be completely confused about why the days after Christmas and New Years’ are named after combative sports.
And the most fun is that our American Cousins who scratch their heads about “Boxing Day” would now be totally confused!