The 'Let That Sink In' meme is a visual pun based on the common idiomatic expression used when someone wants a piece of information to be fully understood or felt. While the concept of a sink literally waiting at a front door has circulated on the internet since the early 2010s, the meme saw a massive resurgence in October 2022 when Elon Musk physically carried a kitchen sink into Twitter's headquarters. This stunt turned a verbal cliché into a physical performance, cementing its place in internet culture as the ultimate way to announce a major change or a hard-to-swallow truth. It is widely used for dad jokes, corporate takeovers, and philosophical shower thoughts.