A person who has great accomplishments that makes them outstanding. Commonly used in the context of an overachiever. Someone who exceeds the expectations of others often gaining respect.
Michivesky is a well-decorated noble service man. I heard he has been the top of his cohort ever since enrolling! He truly is a high flier.
Felicia has done it again! She has obtained highest marks ever achieved for this exam. That highflier!
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.