What is a merpule?

A merpule is a fictional creature from the animated series "Adventure Time." It is described as a small, whimsical being with a unique appearance, often characterized by its vibrant colors and playful demeanor. The term has gained popularity among fans of the show, symbolizing the creativity and imagination inherent in the series. Merpules are often associated with light-hearted and surreal adventures within the "Adventure Time" universe.