A combination of the words 'shit' and 'burrito'. It explains a situation or day that made you feel worse than eating a bad burrito. It can also be used to explain food that tastes worse than a bad burrito.
How was your day today?
Oh, my day was absolutely sherito. Have you had lunch?
Yes, my burger tasted sherito!
The unwelcome mist that greets you when you sit on a poorly functioning self-flushingtoilet that flushes after you sit down instead of when you stand up.
I sat down to drop a few friends in the pool, and got a nasty rectal shpritz.
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.