The elongated synonym of eleven, used by small children still in the juveniles instead of eleven due to a underdeveloped brain, or lack thereof. It may be applied with other numbers, for example, "elevendy four", to further confuse people. The actual code of "elevendy" is yet to be discovered, though scientists are working on it at this very point in time.
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.