Harlan Ellison used “rowrbazzle” in his book about “The City at the Edge of Forever”. But ISTR I read the word in something else he wrote before I read that book. Here’s the quote from the book: “There was actual rowrbazzle size money to be made from this kind of thing.” (An article for TV Guide about the episode.)
But the way I remember it originally is the same meaning: an amount of something that was happily much larger than expected. And it sounded funny!
I added the extra “r” because somebody else on the Internet was already using the original word. Not totally proper, but I was clueless at the time.
I didn’t know it originated in “Pogo Possum” until someone here hailed me as a Pogo fan. I apologized for the confusion.