It's just a saying I use a lot... and it's a very common, well-known saying where I'm from... sort of like "c'est la vie." Most Canadians speak French as well as English, so it's a very common saying here. I didn't realize it wasn't common in the U.S. It just means... "To each his own." It's about celebrating the differences between people. That's all. It wasn't rude. You can Google it.