Goblin mode...?

[chobochobo]

https://www.bbc.com/news/uk-63857329

I'd never heard about this term until the news mentioned its inclusion in the OED.

[TheBrit]

Same, also never heard of it. Interesting that a few of the recent words of the year have already fallen into disuse - youthquake anyone?

[shri]

Son was aware of it and went 'ok boomer' when I declared I was going into goblin mode for the rest of the year.

[ndt]

Old wine in new bottle with new gen label, we used to call it Hippie or more simpler Bachelor mode..

[vmlinuz]

I absolutely have never heard anyone using the phrase - except in a question at the pub quiz about what it meant... On the other hand:
https://mastodon.social/@librariansh...74471888447590

[Elefant&Castle]

Don't think it is yet included in the dictionary - word of the year is

To have been selected as Word of the Year means that a word has great resonance for the year in which it was chosen, but there is no guarantee that it, or the other words on the shortlist, will make it into an Oxford dictionary. Many of our Word of the Year shortlist words do immediately get added to premium.oxforddictionaries.com or are added as new senses of existing words. We want our dictionaries to be as up-to-date as possible and now update them on almost a daily basis. So chances are that even if the word is not added to the dictionary when it is announced as Word of the Year, it will be very soon.

https://languages.oup.com/word-of-the-year-faqs/