Meixuan's are usually ladies who run after sales and discounts and shops in departmental stores. They love helping people almost as much as they love bargains and free things.
Omg stop drooling at the idea of a bargain, youre such a meixuan.
"meiguanxi" is a Chinese phrase which means Nothing,never mind,in response to some conditions when other people feel offensive or sorry to you but you don't.
Eg.
-Joe Wong,I'm sorry to broke your glass>_<
-Meiguanxi,I just want to have a new one!
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.