Sometimes things people from other countries say make no sense, even in English. I was momentarily baffled by this advice on mending flats, on a bicycle riding website.
If the tire has a large gash in it, simply place a dollar over it as you reinstall the tube. It’ll reinforce the tire at the hole and get you home. Replace the tire ASAP (don’t forget to save the dollar!).
I stared at this for quite a while, trying to figure out how shoving a large metal disk into the tire would help, before I realized that it was an American website and although Americans have dollar coins, their default "dollar" is a piece of paper.
It's a little reminder that despite the similarities and connections between our economies, our dollar is not the US dollar. Not that anyone knows what's going on with either economy. I hope we all have jobs next year.