From Fanlore

screencap of a tumblr dashboard on April 1, 2013. Screencap by skywalkerchick1138

Thewas a Tumblr meme associated with April Fools Day, 2013. On that day, SPN fans on social media switch their avatars to a particular photo of a grim-faced Misha Collins . Apparently enough people participated that some people would see their entire tumblr dash full of posts from "Misha". People who were not excited to see pictures of Misha Collins were confused or annoyed. At some point the meme became meta and evolved to include some very odd gifs and manips commemorating the experience of everyone turning into Misha.

According to Know Your Meme, tumblr user lokisleathersuit first suggested the idea for the Mishapocalypse in a 4 March 2013 post, changing he icon on March 31st and coining the term "Mishapocalypse."

There are rumors that the Mishapocalypse has also taken place on April 1st of subsequent years, though with less participation and with less impact.[1]

In February 2020, a similar trend occured on K-pop Stan Twitter, featuring K-Pop idol Wonho.

Examples

All posted on April 1, 2013:

Examples Wanted: Editors are encouraged to add more examples or a wider variety of examples.

Fannish Resources

References