The act of poisoning someone by placing a toxic capsule in ones orifice, usually rectum, and then having a lover ejaculate into that orifice followed by felching out and swallowing the ejaculate with the desolving poison capsule.
Hugh was so angry at Damien's infidelity, he committed felchacide in revenge and now faces some serious time in the ass slammer.
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.