A book that's usually deemed immoral, controversial, outrageous or just plain wrong by social standards. Usually a book that is sought to be removed or otherwise restricted from public access, typically from a library or a school curriculum.
A phrase describing a once deep frost that starts to melt during the passage of a warm front. Normally represents the fact that a band of precipitation on its way one would have hoped would fall as snow actually falls as rain.
While our lifespan is the number of years we will live, our healthspan is the number of healthy years we will have and our sexspan is is the number of years we will continue to be healthy enough to continue having an active sex life.
A lighthearted reaction upon receiving disappointing news of some sort. Usually something that isn't a particularly a big deal, esp. when it primarily affects someone else - sort of a mild schadenfreude. Sometimes doubled or tripled, and possibly said in a sing-songy voice for added comedic effect to imitate a muted trumpet, which is how the meme originated.