A penis, not necessarily a big one, but one that feels so good, or a woman lives so much, that she stays attached and monogamous with a guy, even if he's a deadbeat, and a bum.
Jimmy must have a sugar head, for Brenda to still be with him. He's manegy & broke all of the time, but she wouldn't part with him for a sack of gold.
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.