The 'Zero Days Since Last Blank' meme originates from the animated science fiction sitcom Futurama. In the show, a sign typically displays "Days Since Last Accident." The meme format adapts this by replacing "Accident" with various recurring events, usually negative, embarrassing, or predictable mishaps. It humorously conveys frustration, exasperation, or a cynical acceptance of a frequent occurrence, implying that a particular incident has just happened again, thus resetting the metaphorical counter to zero. It's widely used across social media and online forums to comment on repeated failures, common annoyances, or predictable outcomes in a self-aware or ironic manner.