UK english question

As a joke the TW team mentions selling off the old stuff in the archives as a way to make room for new things. Would this be a car boot sale or jumble sale or something else?

(In the US I'd call it a rummage sale or tag sale or yard sale or something like that.)

ETA- I think I'll just have them joke about putting things on Ebay. Thanks!

Writer's Block: AKA

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*points to icon*

aka:

There are no good donut shops here.

This makes me very, very sad.