Then there's "spotted dick". It sounds like some sort of really nasty physical ailment which might afflict tossers and wankers, but it's actually a kind of food, I believe.

There's another kind of food called "bubble and squeak" which is certainly quite descriptive.

And there's another kind I've seen called "pig in a blanket". It's a small sausage with some pastry around it.

****

Then there's the expression "rogering", as in, "She's in need of a good rogering, that one...".