Simply put, an unecessary mistake, which stemmed from a smaller problem, which didn't get resolved. As a result the issue got a lot bigger.
The term Franchise is used as the goal of many small businesses is to become well established, with a solid foundation and processes, which will enable them to Franchise out. This enables a small business to become a larger business.
Father: Do you take the car in to get repaired yesterday like I asked you?
Son: Umm, no. I forgot. What's the big deal?
Father: The big deal is, I need to pick your mother up from the airport in an hour and god knows whether I'm going to get there and back in one piece... this is a Franchise Sized Fuckup!
A Carnival of Fuckupery is celebration of High Order Douchebaggery. Simply put, an individual, or more commonly, individuals, are douching it up to such an extreme extent that there is nothing you can do to control the situation. And why would you want to do that? It will all come crashing down sooner rather than later, so crack a beer open some chips and settle in for the shitshow.
The mixing of Ketamine, whiskey and borderline Down Syndromealmost universally results in a Carnival of Fuckupery.