I get told off for saying literally all the time.I came to the conclusion the 'vertical cut' bloke is from the colonies, so don't take it seriously. They do all sorts of strange things with food.
As for the term 'sandwichgate' - thinking about it, you're right. Apologies. I won't do that again. Years ago, Mrs Chubbs told me to stop saying, "Quite frankly...", because it sounds pompous. She was right too.