The Death Knocking at the Door meme, also known as the Grim Reaper Knocking on Doors, originated from a webcomic titled 'The Release' by The Perry Bible Fellowship. The illustration depicts the personification of death moving down a hallway, leaving a trail of blood from doors he has already visited while knocking on the next one. It became a viral sensation as a way to mock or predict the downfall of various entities, such as failing companies, sports teams, or social media platforms. The format is a staple for internet commentary on sequential decline and inevitable failure.