Puhoy

Synopsis
Depressed by his feelings with Flame Princess, Finn enters a pillow fort built by Jake where he enters a new world and makes a new life for himself.

Plot
The episode starts off with a knife storm outside the Tree Fort. Jake, who is shaped like a bulldozer, is carrying pillows. Finn, however, is sitting on a pillow chair sulking. After warning him to move out of the way, Jake dumps the pillows on Finn, making BMO fall on Finn's head and CMO on BMO's head. Finn tells Jake to knock it off, Jake apologizes and says he's only trying to cheer him up. He asks Finn how he could be so upset when he's with some of his best friends, and one of them is building an actual pillow fort. Finn replies saying he's just thinking of Flame Princess and said that he told her a joke, but she didn't respond. Finn assumes their relationship is over. BMO says that maybe she just didn't understand the joke Finn told her, but Finn doesn't believe it, and says that maybe she's used her laugh on another guy's jokes. Finn then adds that having a girlfriend is hard, to which Jake replies that being crazy is hard and starts explaining that he needs to focus on real problems as opposed to imaginary ones. He demonstrates by throwing his favorite mug outside the window and says that it is not real and he doesn't care about it anymore. However, Finn still doesn't understand and decides he needs some time alone. He crawls through the pillow fort and finds a hidden door. Finn opens it and finds a whole new world made of pillows.

He transports to Pillow World, which startles him. The door then magically disappears. Finn then slays the Blanket Dragon which makes the Pillow People happy. He then meets the mayor Quilton, who declares a celebration. At said celebration, he meets Quilton's daughter, Roselinen. The two share a dance.

Meanwhile, at the Tree Fort, Jake pulls his favorite mug back into the house using a fishing pole. When focus returns to the pillow world, a great deal of time has passed. Finn is now an adult and has two children with Roselinen, Jay and Bonnie. Quilton visits and tells Finn that archaeologists have researched the door leading back to Finn's world. He says that the door only appears for a short time.

When the episode switches back to the tree fort, BMO is playing with Jake's mug. It has placed a clown wig on the mug, and one on itself. Jake tells BMO he wants his mug back, but will be willing to make some hot chocolate. BMO says Jake drives a "hard burger". When the focus returns to Finn and his family, once again many years have passed. Finn is a slightly aged man when he visits an oracle, Rasheeta, to ask about the door. However, Rasheeta only answers him in riddles. Finn begins to have second thoughts about leaving the pillow world. Roselinen tells Finn she knows he has to go, but asks only that Finn remember his family when he returns to his "real life", something he is later unable to do. An imaginary flashback of Jake convinces Finn to stay with his pillow family.

Jake and BMO are playing together when the action focuses on them again. BMO asks Jake about his kids, to which Jake replies that Rainicorn babies don't need their parents for long. Back in the pillow world, Finn is an old man on the verge of death. As he dies, he flies through space naked and bounces off of GOLB before emerging out of the top of the pillow fort as a child again. He almost tells Jake about the supposed dream, until Flame Princess calls, telling him that she didn't get his joke before and she now understands it. After the call, Jake inquires about the supposed dream, but Finn claims he doesn't know what Jake is talking about.

Main characters

 * Finn
 * Roselinen
 * Quilton
 * Jay & Bonnie
 * Jake
 * BMO

Minor characters

 * Blanket Dragon
 * Snail
 * CMO (cameo)
 * Rasheeta
 * GOLB

Mentioned

 * Flame Princess
 * Lady Rainicorn
 * Charlie
 * Jake Jr.
 * Kim Kil Whan
 * T.V.
 * Viola

Trivia

 * "Puhoy," the name of this episode, is the pillow version of the word "ahoy," that Quilton says when he gets off of the pillow boat to talk to Finn.
 * This is the first time Finn calls Flame Princess his "girlfriend."
 * Finn and Roselinen's children, Jay and Bonnie, are named after Jake and Bonnibel respectively.

Cultural references

 * Finn entering into the Pillow World through a door within his own house (the entrance to the pillow fort), living another life and growing old until returning to his former self after finally leaving is similar to the Pevensie children in C.S. Lewis' The Lion, the Witch and the Wardrobe.
 * The premise of the story, an adventurer/explorerlike person dreaming or living out another, more familial life is similar to the Star Trek: The Next Generation episode "The Inner Light." Additionally Jonathan Frakes, who starred as Commander William T. Riker in that series, provides the voice of older Finn. A stark difference however between the two episodes is that while Captain Picard in the episode retains his memories of the alternate life - even learning to play the flute thanks to it; Puhoy is ambiguous as to whether Finn remembers or not.
 * The Pillowcronomicon is likely a reference to the Necronomicom, the fictional grimoire that appeared in the stories written by horror writer H. P. Lovecraft and various films such as The Evil Dead.
 * The little door that serves as the entrance of Pillow World is very similar to the little door of Lewis Carroll's Alice in Wonderland.

Episode connections

 * This is the second time a knife storm occurs. The first time was "Rainy Day Daydream."
 * Finn appears to have a pillow-like robotic arm replacing his right arm. He previously envisioned himself with a robotic arm in "Mortal Folly," "Who Would Win," and "King Worm." Farmworld Finn's right arm is also robotic. Likewise, in "Wizard" his right arm is transformed into a sword.
 * BMO and Jake both mentioned his kids for the first time since "Jake the Dad."
 * BMO has his '#1 MO' cup from "Video Makers."
 * The music playing when Finn and Roselinen are about to dance is an instrumental of Ice King's "Let Me Show You Something Special" song from the episode "Princess Monster Wife."
 * In "The New Frontier," Jake says that after he dies, he would transcend to Glob World and have a meeting with Grob Gob Glob Grod In this episode, when Finn dies, he comes across a being resembling Glob, named GOLB.

Errors

 * During the final scene in the Pillow-world, Jay's wife switches placement around the bed, first next to Jay, then next to Roselinen.
 * When Jake is fishing for his mug the flower on it changed to the other side. Also, the hole in the window and the window have changed.
 * Finn's sword hilt changes when he is at the party.
 * During the scenes Finn is chopping wool, at some point he's not wearing the sheath.

Production notes

 * CMO was originally from a cancelled episode that would take place in BMO's backstory.
 * Steve Wolfhard based adult Finn on Howard Keel's character from .