This media contains realistic depictions of weight gain, which may be unpleasant to certain readers.
The Simpsons
Creator/Developer Matt Groening
James L. Brooks
Sam Simon
Production company(s) Gracie Films
20th Century Fox Television
Klasky Csupo
Film Roman
Country(s) of origin United States
Original run December 17, 1989 - present
Genre(s) Adult
Episodes featuring expansion 28/560+
Expansion instances 30
Expansion types featured Liquid inflation
Weight gain
Air inflation

The Simpsons is an animated sitcom created by Matt Groening that focuses on the middle class life of a family living in the fictional town of Springfield.

Since it spun off into its own series in 1989, following a series of shorts on The Tracey Ullman Show since 1987, it has become the longest running American sitcom and animated series, with 29 seasons as of May 2018, spawning video games, comic books, a feature film and more. It has been hailed one of the greatest television series of all time, mainly counting its earlier seasons. On April 29, 2018 it became the longest prime-time scripted TV series of all time,

Spoiler warning!
This article contains details of the ending and/or a surprise plot element.

Ullman shorts

The Perfect Crime (S02E10)

Bart has stolen all the cookies and Maggie points this out to Homer and Marge; Bart's bloated belly being a good sign of evidence.

Bart's Nightmare (S03E14)

Bart has stolen all the cookies once again, resulting in him being so stuffed, that he falls asleep, having a nightmare.

TV series

Burns Verkaufen der Kraftwerk (S03E11)

Bart fantasizes being fed a whole truckload of Frosty Chocolate Milkshake.

Itchy & Scratchy: The Movie (S04E06)

The actors of 'Star Trek XII: So Very Tired' have certainly not aged well. Not only have they grown old, they've gained a lot of weight.

Krusty Gets Kancelled (S04E22)

Trying to back into shape for the revival of his show after its cancelation, Krusty starts drinking nothing but what he thought were diet milkshakes, but these were in fact regular ones, causing him to get extremely out of shape. The Simpsons help him get back to his regular shape.

Treehouse of Horror IV (S05E05)

The Simpsons - Donut Hell

The Simpsons - Donut Hell


In The Devil and Homer Simpson, Homer is dropped down into hell and force-fed "all the donuts in the world" in the fashion of Pigs is Pigs, and enjoys it, much to a demon's disappointment.

Treehouse of Horror V (S06E06)

In Nightmare Cafeteria, Mrs. Krabappel gains weight from the burgers the school has made out of its own students.

Grampa vs. Sexual Inadequacy (S06E10)




When Homer and Marge try to live a happy sex life, Homer eats too much to be in the mood.

King-Size Homer (S07E07)

Rag on a Stick

Rag on a Stick


Homer quests to become 300 pounds so he can get on disability and be able to work from home, and Bart becomes inspired by him.

In Marge We Trust (S08E22)

In the Mr. Sparkle advertisement, Mr. Sparkle turns three women into sumo wrestlers.

Bart Star (S09E06)

The children of Springfield are revealed to be overweight, which gets them enrolled in a pee-wee football team.

Lisa the Simpson (S09E17)

Lisa fears that if she gets any stupider, she could end up gaining weight and marrying Ralph.

Girly Edition (S09E21)

Homer gets a helper monkey named Mojo to do things for him, but Mojo ends up tired and bloated from Homer's lifestyle.

Sunday, Cruddy Sunday (S10E12)

With no women around, all the men can finally stop sucking in their stomachs, only to find out that the bus driver for the next several hours will be a woman, so they suck their guts right back in.

Guess Who's Coming to Criticize Dinner (S11E03)

Certain residents of Springfield have gained weight after Homer gives all the restaurants positive reviews.

Faith Off (S11E11)

During a football match, Homer is having a barbecue, which Marge and Bart have to eat most of.

Days of Wines and Doh's (S11E18)

While taking a picture to put on the cover of the Springfield phone book, Bart and Lisa notice Rainier Wolfcastle with a big gut. Rainer tells them that it's for a movie in which he plays a fat secret agent.

Treehouse of Horror XI (S12E01)

In Scary Tales Can Come True, Bart eats all the goods Suzanne has prepared for him while in place of Hansel.

Worst Episode Ever (S12E11)

Bart gets a stomachache after binging on candy with Milhouse.

Tom Savini inflates and explodes; of course, this is another one of his magic tricks that ends up with him surviving.

Hungry, Hungry Homer (S12E15)

Because Homer is on a hunger strike and Marge refuses to cook less while he is away, Bart, Lisa, and Maggie have stuffed bellies after eating their own meal as well as Homer's.

Bye Bye Nerdy (S12E16)

In Itchy and Scratchy's Stabby-Oh's commercial, Itchy puts a funnel in Scrathy's mouth and pours cereal down his throat resulting in a bloated appearance. The two children in the commercial then eat the cereal in Scratchy after Itchy cuts an incision on him.

Sweets and Sour Marge (S13E08)

After Springfield is declared to be the world's fattest town, Homer relaxes and lets his fat gut hang out.

Brake My Wife, Please (S14E20)

The citizens of Springfield stuff themselves at a barbeque established by Homer in order to help Marge get out of her bad mood.

The Fat and the Furriest (S15E05)

Maggie stuffs herself while the kids are using the Kitchen Carnival.

'Tis the Fifteenth Season (S15E07)

Homer says goodbye to his toes after finishing a heavy Christmas meal.

Treehouse of Horror XV (S16E01)

Kang and Kodos serve their boss the Simpsons family for dinner. The boss's stomach then bursts and shows Bart riding out of it in a river of green slime.

Sleeping With the Enemy (S16E03)

After being told she has a "big butt", Lisa has a nightmare about gaining weight that is only made worse when her fat self is with a fat and bald Milhouse.

The Seven-Beer Snitch (S16E14)

Snowball II has gained weight from being the pet of two families at once.

The Heartbroke Kid (S16E17)

Bart eats enough from the Scammer and Z-Dog vending machines to gain weight, ending up severly unfit. 3 weeks later, He starts to mess with the opening credits. Despite of this, he still strives to go for the food he is not supposed to eat. After suffering a heart attack, he still does not obey and Homer enrolls him in fat camp to lose weight.

Treehouse of Horror XVII (S18E04)

In Married to the Blob, Homer eats a green goo that turns him into a gigantic slime monster with a desire to eat anyone in his path, usually fat people.

Funeral for a Fiend (S19E08)

In the Itchy & Scratchy segment, Spherical at 34th St., Itchy interupts Scratchy's and his son's Thanksgiving day parade viewing by pumping Scratchy with enough hydrogen to turn him into a living blimp, before shooting a flaming arrow at him.