Fluttershy is one of the main ponies in My Little Pony: Friendship is Magic, which premiered in 2010, and she is voiced by Andrea Libman. Known for her kindness, love of animals and very quiet voice, the character often squeaks instead of speaking up when she is frightened or overwhelmed. Clips of those moments were shared by fans on forums, videos and soundboards, turning the squeak into a shorthand reaction for shyness online. It remains popular because it expresses nervousness instantly without needing context from the show.