The act of having a small flacid penis dangel between the legs of what is known as a "limp dickfaggot". The act of Dangeling is known to attract groups of adolescent boys around a television, where they will watch other limp dick faggots before partaking in homesexual intercourse.
"look, its goregous outside. Let's try dangeling instead of drink or talk with females!"
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.