A slang derivative of effervescence. The term is used to describe the awesomeness given off by one, and only one, interaction designer extraordinaire. It is a feeling hard to describe, but you know it when you are in its presence; there is a certain "rarefied vocational air".
He walked into the room and saffervescence filled all of the available space. The airfelt electric.
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.