What's in a name?

Quite a lot it would seem.
In our house there are often debates about what things should be called, such as bunker Vs worktop, or messages Vs shopping.
One such 'discussion' is about the names of this delicious treat, the other half would be very clear that this is 'fridge cake' whereas I am in the ' 'fifteens' camp but we would definitely agree that it is never Cherry Mallow ......

a lovely chilled day of cake and tea with a friend who has been working up north this week.