After golf a couple of weeks ago, one of our group said something that made me recollect an RAF song that was not cynical nor sardonic, but downright rude. My friend of fighter pilot days grinned and looked at me, and said, "One white one, one black one and one with a bit of ....on.", and he and I fell about laughing.
We couldn't explain it to our colleagues who were retired doctors, civil servants, entertainers, bankers and accountants. I wonder if they have such a sub-culture.