Wassies are tiny creatures with room temperature IQ. They are usually a mix of platypuses, frogs, ducks, or penguins and the result of radioactive incidents or mysterious apocalyptic events. Their short lifespan extends further if kept in a fridge after which they respawn with the knowledge of their ancestors.
Some people derive amusement from targeting them, while others passionately stand up to their defense but wassies simply cannot be stopped or eradicated.
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.