The most beautiful, amazing, gorgeous girl you will ever meet, the best friend, soulmate, girlfriend you will ever have, the kindest, chattiest most fun person you will ever meet, if you know a chayanee it is an honour to be associated with such a lovely lady. Can also be used as a term for a lovely person.
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.