Its clearly symbolic, but I don't get it. The only sink phrase I know is "everything and the kitchen sink". Edit: https://en.as.com/latest_news/why-did-elon-musk-carry-a-sink-into-twitter-hq-n/ > the South-African born business magnate walked into Twitter HQ in San Francisco carrying a white porcelain sink. All, seemingly, for the purpose of a pun. > “Entering HQ – let that sink in!” he tweeted above a video of his entrance into the building, presumably referring to the constant speculation, since as far back as 2017, over whether he would finally make Twitter his own.