Zaumg started off as a joke on Twitter while I was flailing about trying to come up with a proper title for The Sanctum of the Sphere. I wanted something that sounded like a Star Wars/Indiana Jones/ adventure serial type of subtitle, and specifically was trying to think of something alliterative. When I referenced The Temple of Doom as a template I was working from, some jackass (and I say that with love) suggested The Ziggurat of ZOMG. I rejected it, for obvious reasons.
There is a story in the forthcoming Tales from the Benevolence Archives called The Ziggurat of Zaumg.
It is the Internet’s fault.