a careful kusher is someone who smokes weed but doesn't want everyone to know. they want to maintain a good reputation and actually care about morals, but they don't mind getting a little #baked every once in a while
Careful For What You Wish For is used to warn a person about their wish they want to come true and tell them that it might not the thing they will envison later on.
Person 1: Man, I wish to become a successful hiphop rapper!
Person 2: Careful what you wish for though! it might come at you ten fold in the most unexpected way.
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.