IMC anecdote you reminded me of.
I have a place named wyrmwood in my campaign. I think a lot of us do. It was kind of a joke, because there were no dragons in the area, and no one remembered why it was called that. Dragons are already somewhat rare in my games, so this was only somewhat noteworthy.
Well, one of my off habits is answering little questions like why the town was called that in other campaigns. In this case its because Wyrmwood was close to a forbidden temple gaurded by a wyrm so large tat its orey consisted of a whales, in particular a blue whale.
The look on my players face when I described that beast flying from the ocean with a blue whale tucked into its jaws and claws was priceless.