Well I never

[NotAllThere]

Perhaps earlier in the day, but not now.

Wrong. Google Ngram Viewer Bit of dip from 1950 to 1975, but since then a steady increase.

Conclusion: you're ignorant.

[Zigenare]

Wrong. Google Ngram Viewer Bit of dip from 1950 to 1975, but since then a steady increase.

Conclusion: you're ignorant.

And you're so far up Old Greg's arse you can tweak his tonsils.

[NotAllThere]

And you're so far up Old Greg's arse you can tweak his tonsils.

If it makes you feel better, you're ignorant as well. I'd hate you to feel left out.

[Zigenare]

Sorry. Didn't mean to trigger you.

I forgive you.

[Zigenare]

If it makes you feel better, you're ignorant as well. I'd hate you to feel left out.

I've an excuse for my ignorance, I'm lowering myself to your level.

[Old Greg]

Wrong. Google Ngram Viewer Bit of dip from 1950 to 1975, but since then a steady increase.

Conclusion: you're ignorant.

There is a simple English wiki page, if any Brexiteers would find that helpful.

Fellow traveller - Simple English Wikipedia, the free encyclopedia

[Bean]

Wrong. Google Ngram Viewer Bit of dip from 1950 to 1975, but since then a steady increase.
Conclusion: you're ignorant.

I was ignorant of the term, 'earlier in the day', i.e. prior to 11:05 8th March 2019. I am no longer.
Conclusion: You're a for not KUATB


Also, I said

it was just Old Greg using words that are generally no longer used in the UK vernacular.

vernacular;
the language or dialect spoken by the ordinary people in a particular country or region

You've shown that the term is used in books.

HTH BIDI

Although I am loving an ex-pat trying to lecture someone who does still reside here, with what words are spoken by the ordinary people here, by using a link that analyses books
Keep it up though, eventually you may come across a google link worth a damn

[Bean]

No. You are incorrectly inferring. Being an educated adult is an indicator for a level of knowledge beyond what they learned in their formal education.

Fascinating.

What other phrases and topics are mandatory, in order to be labelled 'an educated adult'?
(As you seem to be suggesting that one cannot be 'an educated adult' if one doesn't understand what 'fellow traveller' means...thus making it mandatory learning.)

[NotAllThere]

I was ignorant of the term, 'earlier in the day', i.e. prior to 11:05 8th March 2019. I am no longer.
Conclusion: You're a for not KUATB

Three day old thread which you only return to now, and you're telling me to keep up?

[Old Greg]

Fascinating.

What other phrases and topics are mandatory, in order to be labelled 'an educated adult'?
(As you seem to be suggesting that one cannot be 'an educated adult' if one doesn't understand what 'fellow traveller' means...thus making it mandatory learning.)

Do not be sad, Bean! We can help you learn hard words.