Kirsty Gunn: Culture popping up all over our ‘reimagined’ nation

Pop-up is now de rigueur. Where once it might have meant a kind of children’s book, or Jack-in-the-Box-type toy, now the word indicates a fun activity that’s more for grown-ups. A pop-up is something that appears here or there for a short time only, be it a shop or a bar or a restaurant ... or, most recently, a festival.