lol msl...I'd forgotten about face like a skelped arse.
My dad used to say as well...a face like a well worn baffie.
and i often use words only for them to be greeted with blank looks and then I have to expain.
I'm in the construction industry and there are a few Scottish phrases and words that aren't used in England, so that causes further confusion.
slapping - to knock a hole through a wall for a new opening (greeted with hoots of derision in england)
solum - the name given to the exposed surface under a suspended floor (no name in england)
declevities - tapered pieces of timber to provide a fall to a flat roof (firrings in England)
To name but a few.