When I was in college, I took a literature independent study with 2 or 3 other people. I wasn't paying attention and my professor said something about a "shim" meaning a literary term (still don't know what it is though).
I look up at my professor and blurt out "You mean like a he-she?"
He just stared at me and was like "No..."
I also don't know what Boxing Day is. I could Google that though.