The jabberwocky was an AI that appeared in the 'Wonderland' setting of Drake's machine. It is based off the character who appears in the poem Jabberwocky, written by Lewis Carroll.
Hailey encountered the jabberwocky after escaping the doormouse, March Hare, and Mad Hatter. The jabberwocky was much stronger than her, especially as it was unkillable without the Vorpal Sword. Instead, Hailey used her pyrokinectic powers to overheat the machine. Drake switched to the next program, and the jabberwocky dissapeared. (Disruptive Selection)