The act of requesting an individual around you to give you an opinion, idea, item(tangible or otherwise) , etc. Chuck us does not necessarily mean actually chuck the said item/s.
A saying used mainly by youth from Tasmania, Australia. Used when someone has something favorable and you want some. The 'us' part never changes, even if it's only you wanting the thing.
Freind buys Tim tams
Other friend: Hey Felix, surely chuck us one! Surely! Surely chuck us 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.