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"The Department of Puberty" is the tenth and final episode of the second season of Big Mouth. It is the twentieth episode of the series overall. It premiered on October 5, 2018. It was written by Gil Ozeri and directed by Bob Suarez.



Nick finds a magic portal in his closet that had been left open by Tyler when he comes to inform Nick that he's been fired from his job working as his Hormone Monster. Nick, Jessi, and Andrew travel through the portal to Puberty Headquarters, Nick seeks out a new Hormone Monster and Jessi bonds with the Depression Kitty. Maurice is troubled because he has to round up Nick, Jessi, and Andrew because if they spend more than an hour in the monster world then they will be either stuck as they are in puberty or they will become vein-y little child wrestlers. In the end of the episode we discover that Nick's new hormone monster is Connie the Hormone Monstress and that he is Connie's first boy. Jessi also escapes the clutches of the Depression Kitty and is returned to Connie.


Major Roles

Minor Roles



Cultural References

  • Matthew had pictures of Morrisey and Ariana Grande in his locker.
  • Connie calls Jessi "lady bird" when she gets out of the car, referring to the movie Lady Bird