I'm still working my way through the definition of crumpets by Dave MacKenzie, which bore no relation to any crumpet I've ever eaten (and I've had a few in my time). No crumpet I've ever met could be confused with any variety of pancake!
No one has mentioned Cornish splits yet, either ...
Oh, and the pets de nonne (or nun's farts)in France mentioned above were like a small cottage loaf shape made out of choux pastry, iced and filled with either coffee or chocolate confectioners' custard. Or do I have to define "cottage loaf" here too?