When a person is so excited about a subject (usually books, technology, graphics in a movie etc.) that all they can do is talk about it. The verbal version of nerdgasm
“Did you hear about the new iPhone x500?! It has....” *nerdjaculates for thirty minutes about the phone*
“I love how the author shows...” *nerdjaculates for twelve years about the characters falling in love*
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.