Nobody knows exactly what Hurk is; all we know about Hurk is that it is a game many would rather play instead of going to work.
"I'd rather play tennis than go to the dentist,
I'd rather play soccer than go to the doctor,
I'd rather play Hurk than go to work."
"Hurk? Hurk? What's Hurk?"
"I don't know, but it must be better than work."