Talk:Princess Celestia/@comment-15629929-20151116184703/@comment-10390252-20151117163535

Things don't always have a clear reason, Spike.

Sometimes, someone comes up with a flippant nickname for the character to use in a disrespectful way. Then, because it sounds funny, it's reused a lot on Twitter, Tumblr and the like. Soon, it is pretty much a universal synonym for the character.