The term used to describe the itching of the anus at night, due to threadworms. Whilst sleeping your body automatically scratches the irritation but it only gets eggs under your nails to produce more thread worms and gives you a nasty smelling hand.
"Dude, I have a proper bad case of anal irritation. I need to get checked out."
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.