Hard disagree. It's been mentioned in jokes, multiple times, in prime time current affairs shows in my country. I expect almost everyone I know under the age

Hard disagree. It's been mentioned in jokes, multiple times, in prime time current affairs shows in my country. I expect almost everyone I know under the age of 60 knows what it is. From my under 18 relatives, through the accountants and builders and electricians, to the coffee shop owners, bar staff... and of course all the systems & software people I work with.