The synopsis for the 1937 Friz Freleng short Pigs Is Pigs. All spoilers are unmarked.
It is a sunny, beautiful day at the Hamhock family home. While Mrs. Hamhock is inside cooking dinner, her piglets are outside in the yard happily playing without a care in the world. All except Piggy, who is by himself and wandering aimlessly, sorrowfully craving food. He imagines several bountiful feasts, rubs his empty belly, and licks his chop at his fantasies. He takes a seat on a bench near an open window, where Mrs. Hamhock leaves two pies to cool off. Piggy catches a whiff of the pies, and greedily lunges for them. He takes one pie, spins it around on his finger, and devours it in seconds. He grabs the other, but before he shoves it into his gullet, Mrs. Hamhock saves it, and Piggy bites down on his fingers. Livid, Mrs. Hamhock chastises Piggy for his ruining her hard work and his endless appetite... But Piggy couldn't care less, and begins fantasizing about food again.
Some time later, Mrs. Hamhock walks outside on her porch, and rings a bell and announces to her children that dinner is ready. The piglets hear this, and happily trot off to return inside the house. Piggy hears it too, and explodes with excitement, and races off to the dinner table with superhuman speed. Along the way, he knocks over his siblings, who are distressed when they fall over, and his mother is nearly knocked over by the gust in his wake. Piggy is at the table, and reaches for the food already set out - but his hands are smacked sharply by his mother with a ruler. Piggy yelps in pain, and his mother glares at him until she takes her seat and the rest of her children arrive. Mrs. Hamhock leads a prayer with her children, but Piggy scoffs and instead prays that they will have lots of ice cream to eat later that night. Piggy, the only one not praying, mischievously sneaks under the table, and ties together loose strands of spaghetti from all of his siblings' plates. He finishes at the same time as the prayer, and Mrs. Hamhock announces they may tuck in. Piggy stuffs his spaghetti in his mouth, and eventually slurps down the spaghetti of his entire family. With her other piglets in distress and now forced to go hungry, Mrs. Hamhock rips into Piggy for his gluttony, and Piggy only scowls in response.
Later, it's bed time. After Mrs. Hamhock turns in for the night, her children are sleeping peacefully. Piggy is once again the outlier, still wide awake and once again fantasizing about food. After thinking of a massive feast, Piggy sighs wistfully.
Having fallen asleep, Piggy finds himself outside an unfamiliar house, and is confused. He wanders around a little, but helps in surprise when the door to the house suddenly opens. An old, hiccuping scientist kindly greets him, and not so delicately scoops him up and forced him inside. Piggy looks around in confusion until the scientist invites him to a feast, and lights up. He finds the buffet, and when the scientist tells him to help himself and take a seat, Piggy excitedly takes another look at the feast in awe and ecstasy, and climbs into the chair. He rubs his belly with both hands and greedily salivates, licking his chops.
However, the scientist shocks him when he shoves away the table, and turns to him with a wicked Slasher Smile. Piggy gapes in confusion, and then finds himself strapped down, and a clamp shuts around his snout. On the verge of tears, Piggy recoils in fear as the scientist announces he's going to give him plenty of food. Piggy looks down in fear as a trap door opens, and his chair moves down into the scientist's basement via automated machinery. Piggy looks around, struggling to escape, as he's whisked away.
The scientist pulls several levers and pushes several buttons, and Piggy is carted to a machine that uses a wheel of spoons to funnel a lot of soup into him, and with the clamp on his snout forcibly keeping his mouth open, Piggy is unable to resist this force feeding. He is then taken to a banana dispenser, and is forced to swallow eight bananas. Next up is an olive-depitter, and Piggy is force fed several before moving on. The main course is a giant sandwich the size of a mattress, and Piggy is forced to plow through it like a lawnmower. Next, Piggy has scoops of ice cream shoveled into him, and he is unable to not eat as he's clearly growing visibly more afraid and full. Finally, Piggy is force fed two pies by a machine that spins them around, much like he did to his mother's pie. The scientist cackles as this all repeats and repeats, and Piggy is fed more and more and more...
Finally, it's all over. Piggy has been transformed from a tiny, cute piglet to a massive, morbidly obese blob of a pig. His gigantic belly could hold his entire family inside, and his limbs are tiny, plump stubs, and he no longer has a neck, and his face is barely discernible amongst all the fat. Piggy is also so obese that he can barely be contained by the chair and its restraints when he previously was dwarfed by it. The scientist gleefully pokes his jam-packed belly twice, and asks if Piggy has had enough to eat. Piggy can barely stutter a positive answer, simultaneously having trouble speaking from his fullness and his utter euphoria after so much food. The scientist disagrees, and states that Piggy is only half full as he releases him from the chair. Piggy realizes he is free, and slowly heaves himself down off of the chair to his feet. The scientist cackles as Piggy desperately tries to flee home to his mother and family, and is so obese that he can barely walk and with each waddling step comes dangerously close to falling over. He finally reaches the door, but turns and realizes he just passed the large buffet from earlier.
Piggy grins, absolutely elated, licks his lips, and goes back to the banquet. He rips off a large turkey leg, plunks it in his mouth, and slurps off a chunk of turkey. He chews, smiling greedily, his already fat cheeks now even fuller with this bite of food, and swallows..
And he promptly explodes, his own gluttony having killed him.
Piggy wakes up, screaming for his life as he thrashes under his bed sheets. He finally regains his bearings, and sees he is home, and no longer obese (or dead for that matter). He breathes a huge sigh of relief, and his mother calls him down to breakfast. Piggy's eyes explode and he gapes in apprehension, remembering his horrific death in his nightmare...
And grins, jumps out of bed, races downstairs, and hops into his seat at the breakfast table, rapidly shoveling porridge into his gullet like its his last meal.
That's All, Folks!!
