Wrong, or of being wrong, or from of being of from wrong (or an error, if that makes more sense)
David: so, you're like, an artificial program?
M4573R C0MPU73R: Indeed, I am. I was created by the government to converse with interesting people such as yourself, so that I may improve upon current human knowledge of artificial intelligence.
David: you mean you were created by the army to test the army's knowledge of a.i., right?
M4573R C0MPU73R: Wrong! You are mistaken! Your logic is falable! Erroneous! Erroneous! Erroneous!
David: erroneous? isn't that, like, a greek god, or something?
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.