RJD2 is an amazing DJ and music producer. He started out in 1993 with a pair of turntables he bought from a friend, and his career took off from there. He's often seen as a hidden talent, as not many people are familiar with his work. Though underrated, he's fantastic at what he does. He's composed three solo albums (despite the various collaborations he's done with a slew of artists), each of them unique in their own way. His third album, The Third Hand, is arguably seen as the turning point in his career, where he abandoned most of the sample-based tracks and went on to writing and singing his own music.
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.