The 'In This House' meme is a parody of the progressive 'In This House, We Believe' yard signs that became ubiquitous in the United States starting around 2016. While the original signs listed various social justice tenets, internet users quickly adopted the format to express hyper-specific fandom rules, ironic statements, or absurd household 'beliefs.' The meme typically uses the same multi-colored, varied-font layout as the original sign to create a visual shorthand for a manifesto. It has since evolved into a versatile template for communities to signal their shared interests, whether it is about gaming, specific TV shows, or just humorous life philosophies.