http://en.wikipedia.org/wiki/TeacakeIn most of England, a teacake is a light, sweet, yeast-based bun containing dried fruits, most usually currants, sultanas or peel. It is typically split, toasted, buttered, and served with tea. It is flat and circular, with a smooth brown upper surface and a somewhat lighter underside.
Bit like the "sticky toffee pudding" at White Waltham which is actually treacle sponge... In East Lancashire, the former West Riding of Yorkshire and elsewhere in the North like the town of Barnsley, a teacake is a round bread roll which is cut in half to make sandwiches. They do not usually contain any sort of dried fruit.
Suppose in those areas, currants, fruit and sugar was hard to come by. Guess they had to fool people into thinking serving plain bread was somehow just as good.
But anyway, a chip butty, in any form, is usually pretty good. In fact, I could do with one now, made with the chips in the hotel at Sywell - they're lovely!