Electronic wordDodo. An electronic version of the traditional wordDodo, and has steadfastly persevered in the traditions of the paper wordDodo, even in the face of being firewalled by USAFA administration (cadets are banned from access to the site, though there have been many workarounds to beat the censorship).
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.