The fear of speaking off the cuff or from the heart, the terror of having to say the wrong thing and watch someone's smile fade as they realize you aren't the person they thought you to be
Mary: Ah! you look like a sleezy pimp with that lousy mo!
Fred: Give me a break, I'm just raising money for the Movember cause! Are you sure you're not mohophobic or something?
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.