This post has brought back so many memories, thank you.
We were at a Wedding once I was about 10, very stuck up lady was trying to bully my Mum and my Dad overheard,,, she wanted to know where we lived, (in a very nice area) my Dad asked her where she was from, Morningside, and he said, well that explains the cheap fur coat, did you put your knickers on this morning then? Old saying fur coat and nay knickers is from Morningside.
Now we can look the East End in the face.

Wis she gan doon i' toon?