I've always loved crumble (usually apple or rhubarb in our house), so I just had to make a plum version! I was inspired by a recent recipe on Cookie and Kate, in which I also learned that Americans refer to crumble as a crisp!
I'm always fascinated by how much variation there is in the English language between different English-speaking countries. It was the subject of great discussion between my friends last year when I was on Erasmus in Germany. The arguments over the pronunciation of "aluminium" very nearly destroyed friendships... Not to mention the confusion I (& the other Irish) caused by using "grand" to mean alright/fine, as opposed to extravagant/elaborate (if any of them are reading this: It's alumINium, just to clarify) ;-)