This is what my mother would say when the weather was wacky like it has been on the East coast of the U.S., snowing one day and warm the next. On the internet it says that the phrase Moishe Kapoyer was coined by a humorist, B. Kovner, in The Forverts (The Forward, a Yiddish newspaper). This makes sense because my mother always read the paper. What does it mean? Moishe of course is Moses, or Morris. Kapoyer means backward or reversed. So in effect it means Moses is upside down. Whenever you are discussing something that is topsy turvy, it’s Moishe Kapoyer.