1) To completely undermine or destroy anything (up to and including a nation) through untiring dedication to your god, your friends or your own mistaken belief that you are something other than inept.
2) General moral superiority and inflexibility resulting in the fubarification of everything you get involved in
There I am sitting at my desk, thinking about how I will spend the long weekend with my wife and kids, when the army calls telling me I've been bushwacked.
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.