album tells the story of a single house party and this song summarizes the record's message. Lorde explained to Genius
"Another big realization of the last year for me – 'I think I'm partying so much because I'm just dreading sitting at home by myself hearing my thoughts hit the walls.'
I think parties are a really interesting mental exercise/take on a few different layers when you're feeling like this. Kind of what the album is about."