Noun: The magical eighth day of straightwork without a day off, traditionally landing on the Monday of the second week worked.
Addendum: In most jobs, pay is given weekly or bi-weekly and overtime and double time are incurred on weekends under specific criteria. When it is Fafarnin, pay is always reverted back to normal rates even though there is no break inbetween the weekend and the next week.
1. Holy shit, today is Fafarnin. I need a day off!
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.