A term often used by those living in the North-Eastern United States, where rapidly changing winter weather creates slippery conditions for pedestrians without warning. Similar to taking a "wicked shitter," going "ass over tea kettle" describes the motion of the body as it somersaults uncontrollably on a driveway or down a set of basement stairs, for example. The tea kettle is valued during cold winter months and is used metaphorically to assert that something important (along with one's ass) has been damaged in the fall.
Not realizing that the driveway froze over, I went ass over tea kettle while goin' out to get the mail.
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.