How some foreigners misheard the Romanized name of the popularJapanesedrink Calpis which is Karupisu, A soda made from milk.
Steve: Hey Joe, Do you have any drink that we can have for our pajama party
Joe: How about some Cow Piss?
Steve: What's a Cow Piss?
Joe: A Soda that is made from milk and is similar to a bottle of Ice Cold Vanilla Coca-Cola but looks more like a yogurt drink
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.