Name given to the actions of dogs whilst traveling in moving cars when window is down. Dog will without fail travel a full 100 miles with its head out of the window, tongue slapping the side of its face. oh, the utter joy of going over 30 miles an hour
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.