The Mishapocalypse refers to a legendary internet event that took place on April 1st, 2013, when the Tumblr community collectively decided to change their profile pictures to a specific, slightly awkward close-up of actor Misha Collins. What began as a fandom joke quickly spiraled into a site-wide phenomenon, where every dashboard post and comment section was filled with the exact same staring face. This digital 'apocalypse' showcased the organized power of the Supernatural fandom and remains one of the most memorable April Fools' pranks in social media history. Today, the meme is used to evoke nostalgia for early 2010s internet culture or to signal a chaotic takeover of a specific online space.