I have just operated a BA B747-400 to the USA. My First Officer was Scottish, the heavy FO was English, and I was born in the colonies. The Cabin Crew came from all parts of the UK, France, Spain, and Hong Kong.
Seems very British to me.
I assume BlueRay is Australian.
(as these pilots call you) self loathing freight?
In all of my career, from Britannia Airways, Loganair, Dan Air, and BA I have never heard any pilot ever use that phrase. Just more utter rubbish.