It's when you're getting completely fisted (by a colleague, your boss, the man, etc) with the added value of them opening their hand completely and giving it a shimmy shake.
I'm grossly underpaid at work. I'm getting royally jazz handed.
the delicate art of stuffing ones thumbs in a ladys arse, and spreading the fingers out in a joyfull circular bliss around her buttocks, whilst in the act of doggy style.....
Nick: Is lisa allright? She seems to be walking a bit funny today......
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.