"Doubled Down" Or "Stood By"?

[sandyRoe]

An online article today reports that a graffiti artist has doubled down on his claim that he, and not Banksy, had painted the Nottingham mural.
Would "stood by his claim..." not have been clearer English?
Where does doubled down come from, an Americanism?

[shoota]

Is it not a gambling term indicating a large stake on a virtual certainty?

[elliemay1]

//double down
phrasal verb of double
US
(in blackjack) double a bet after seeing one's initial cards, with the requirement that one additional card be drawn.
"the amount only increases when you choose to split or double down"
strengthen one's commitment to a particular strategy or course of action, typically one that is potentially risky.
"he decided to double down and escalate the war"//

[aelmpvw]

'stood by' every time if you like plain English

[sandyRoe]

That sounds right, doubled your stake because you were confident about the outcome.

[Tilly2]

Whomsoever did it, it's a lovely piece of work. The photo of the little girl emulating it is wonderful.

https://www.bbc.co.uk/news/uk-england-nottinghamshire-54591487

Someone is telling porkies, irrespective of the phrase used.

[woofgang]

I am not sure why Banksy would claim anything he hasn't done.

[woofgang]

PS doubled down usually means that you increase your bet. I don't see what the (unknown) graffitti artist is betting?

[Mamyalynne]

It seems Itchers and Banksy have a little history.

https://www.nottinghampost.com/news/nottingham-news/street-artist-itchers-admits-beef-4616466

[jno]

I think "repeated his claim, only louder" might be more like it.

[douglas9401]

Vandalism reclassified as 'international art'.

Turd polishers ecstatic at significant shift in perception.

[jno]

I think his work's okay, douglas, but it's still grafitti and I don't like grafitti

https://en.wikipedia.org/wiki/Works_by_Banksy_that_have_been_damaged_or_destroyed