The act of licking a butthole and blowing air into it, then having the person with a butt full or air fart it back into your mouth, sometimes farting small chunks of dung into your mouth.
"I gave this girl a butt blowing last night and it was so hot"
"Oh damn did she blow chunks into your mouth?"
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.