Term related to an archaic device from The Before Time, The Long Long Ago. Refers to the carriage advance lever on a typewriter, so named for the characteristic *ding* made by the machine upon pushing the lever, and the *BANG!* sound made as the carriage returned to the left margin.
"To move to the nextline, just slap the dingbanger."
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.