Raising your pinkies at a proper British afternoon tea in London (preferably with scones)
A lovely courtyard garden spot for lunch or afternoon tea amid the 18th century splendors of the Wallace Collection museum
An elegant 18C pavilion where Queen Anne once entertained
The generic British word for dessert is "pudding."
In the 19th century, the "g" was sometimes pronounced as a harder "k." Sometimes, the "n" got dropped. Sometimes that was shortened by slicing off the "pud."
In other words, small, incremental changes resulted in pudding->puddink->puddik->dick.
It's not meant to be dirty; it's just a Victorian synonym for "dessert."
Pepper a cake with currants or raisins, and you get "spots" in your pudding, hence: spotted dick.