Said to someone who fails to comprehend his or her own present situation. Often perceived as a misinterpretation of past events or activities. It is advisable to remind the person in question (if you appear to be in verbally discernible range), of his or her mistake to avoid any forthcoming embarassments on his or her part.
(Brief exchange prior to an imminent Science Test)
Karl: Hey Ev! *shakes his hand* Fail with honor!
Evan: Thanks. You too.
Karl: Ayan! *shakes his hand* Fail with honor!
Ayan: What?! Hey, I'm passing!
Karl: Ughh.
Evan: Haha, head up in the clouds Ayan!
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.