I think its a (stupid, naturally) US automotive yoof fashion thing.
Came across it by accident when I was looking into DIY tyre fitting, an ability I used to have but am having trouble reviving.
I THINK its associated with "stretched" tyres (well, tires) which are too narrow for the rims.
This is considered to look "cool".
I often have trouble distinguishing the cool from the cretinous, though its more of a problem in the context of motorcycles.
I'd agree that tin is probably incoming.
Edited by edlithgow on 20/11/2019 at 12:16
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