The sexual act in which a chubby chaser lays face up on the bedroom floor then his/her morbidly obese partner over 300 lbs in weight squatts on the chubby chaser's face and farts. This act got its name from when the first hunter-gatherers all the way up until early AMH (anatomically modern homo sapeins) would make the mistake of getting in too close to kill their megafauna menu items that would sqaut on the faces of their attackers and fart, shart or shit as they died from the wounds.
According to the WHO, the leading cause of death in chubby casers is the jurassic fart.
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.