Starting with one for the UK crew.
If you went to school during the 70s, 80s, or 90s, you'll almost certainly remember what stroking your chin and saying "Jimmy Hill" meant. Common variations include "Jimmy Chin", "Jimmy Reckon", and "Chinny Reckon". I guess maybe a third of the population know this to be true, yet it's not mentioned in his article.
Chinny trivia
You know, there are not, um, there are not people standing for election now on the grounds that ‘People with big chins should be sent back to wherever they come from – Chinland probably, I don’t know, I haven’t done any research into it, obviously.’ And there were not vast swathes of humanity historically enslaved on the grounds that they had big chins. If there had been, all popular culture as we know it would be entirely different. There would not be a blues root underpinning all the late-twentieth-century popular music that you love if the Mississippi delta had been populated exclusively by disenfranchised ex-slaves with big chins …
‘Woke up this morning, Got a big chin. It’s not that much of a problem to be honest. I won’t base an entire musical genre on it.’
Here is the chin
The article doesn't explain Jimmy Hill's role in the Chris-chan saga either.