The 4chan Alien Sighting Hoax, often referred to as the Arizona Alien or the 2017 /pol/ Alien, stems from a legendary thread where users claimed a high-fidelity image of an extraterrestrial was posted and immediately suppressed by mysterious government entities. The image featured a pale, blue-eyed entity that sent the internet into a frenzy of speculation and digital archiving. Although later identified as a CGI creation or a clever hoax, the event solidified its place in meme history as the ultimate 'I was there' moment for conspiracy theorists. Today, the meme is used to poke fun at internet gullibility, government cover-ups, and the chaotic nature of anonymous board culture.