Fart Princess is the princess of the Fart Kingdom. She first appears in All Stupid Penguins when Finn and Jake go to save her from the Ice King. She farts before and after each of her sentences.
She appears as a brown version of Slime Princess. She has a giant butt.
She is the princess of the Fart Kingdom, and always farts. When Ice King kidnapped her, Finn and Jake wondered why Ice King wanted to kidnap her. In Were-Spider Wedding, she tells Finn about the special silk that can fix anything.