Having such a long, wild, athletic sex session with so many positions that you feel like you just got a serious workout at the gym.
Ursula: Wow, girl. You look exhausted. What have you been up to?
Maria: My man just spent the last 12 hours doing naughty sexnastics with me. I need a nap!
Ursula: Now I know why he's in such good shape.
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.
You didn't get any napkins with your takeout pork fried rice? Womp womp.