I don't know if it's mainly a Forces thing, as I have come across it many times over the years, most often amongst Forces people, but we have often been invited to Supper rather than Dinner, when they mean that they want a more casual dinner. It happens so often now that I don't really know what to say to people when I ask them round. I always used to say, 'Come to Dinner', but now I think I shall simply ask people round 'for a meal'!
Supper to me was something my parents had, after having been to see a play in London they would have a late supper before catching their train back.
As children, we had
breakfast
elevenses (drink and biscuit)
lunch
afternoon tea ( drink and cake)
High tea, children only - always something cooked, and dessert or more cake.
My parents would have dinner at 8 after we had gone to bed. Even at 13, that was my bedtime, or at least, I had to go to my room, so that they could have dinner together.
Definitely sand witch. Loos were preferred to lavatories, although I did know some people who said Lav. Sitting room and sofa - I do remember very clearly my father asking my mother what she thought about saying lounge and settee - it was apparently considered very slangy and modern in the 60s! He worked in London, so picked up phrases like that - but as she said, 'Darling, we live in Tunbridge Wells, not London' whenever he tried to introduce anything too avant garde!
