This is more specifically defined as accidental excretion in the standing position, where the faeces is squashed into flat pebbles by the buttocks. Assuming that it isnt too sticky and comes away whole, the biscuit may resemble a cookie, a jaffa cake or something bigger. Any identifiable food can prompt the addition to the name
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.