The 'Attacking the Three Gorges Dam' meme originated within niche online defense communities, most notably the r/NonCredibleDefense (NCD) subreddit. It centers on the absurd and highly controversial hypothetical scenario of destroying the massive hydroelectric dam in China. Rather than a serious political statement, the meme is typically used as a form of 'non-credible' shitposting, often referred to as 'The Funny.' It gained traction as a recurring trope to mock overly aggressive military enthusiasts or to highlight the catastrophic scale of such an event. Usage often involves technical diagrams, red circles, and ironically intense logistical planning, cementing its place in the lore of internet military subcultures.