When you find yourself in a date with someone who bores you to the point that you find yourself asleep with your eyes open.
Paige: Dang, the guy last night who took me to dinner was such a bore. He caught me datenapping right during the entree.
Jill: Ya, I always used to suggest movies instead of dinner, in the event the guy was a loser, so I could catch up on my datenaps, especially if I did not get my meetnapping that day at work.
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.