the act of having anal sex from behind on a porch and then pulling out quickly and having someone else insert, without the knowledge of the receiver. after pulling out, one runs outside and starts mowing the lawn in full view of the receiver, so as to surprise them in the realization that it is not you in their anus.
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.