(adj) An adjective concatenation of oral and orgasm used to describe the intensely pleasurable sensation produced by the experience of tasting, eating, or otherwise introducing something to one's mouth. Oralgasmic experiences are often characterised by a closing of the eyes, swooning, salivation, and appreciative noises.
That slice of death-by-chocolate cake was beyond delicious--it was oralgasmic.
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.