One Piece is a long-running manga series created by Eiichiro Oda. It was later adapted to an OVA and an anime series. It also received more OVAs, a number of movies, some specials, and video games. Widely acclaimed, it is one of the most popular franchises ever known.
The story follows Monkey D. Luffy, a pirate who has elastic abilities due to eating a Devil Fruit known as the Gum-Gum Fruit. To fulfill his dreams of being a great pirate, he searches for the treasure of Gol D. Roger - One Piece, located in the Grand Line - to be King of the Pirates. With his motley crew, they travel the world to make their dreams come true.
Epic Showdown! Swordsman Zoro vs Acrobat Cabaji! (S01E07)
Luffy inflates his body to stop a cannonball fired by Buggy and the Buggy Pirates
The Honorable Liar? Captain Usopp! (S01E09)
Luffy eats a lot of food at the restaurant Usopp took him and his crew to. When the rest of Usopp's crew members arrive, Zoro teases them into thinking that Luffy ate their captain. Luffy happily rubbing his stomach and saying, how tasty the food was, doesn't help.
Everyone's Gathered! Usopp Speaks the Truth about Nami (S01E34)
During a rainstorm, the Straw Hat ship springs a leak. Luffy attempts to stop it by drinking the water from the area.
Proud, Tall Warriors! Dramatic Battle of Sanji and Usopp! (S01E40)
One of Chew's attacks is called Mizu Taiho (Water Cannon). He uses this in an attempt to finish off Usopp
A Burning Culinary Battle? Sanji vs. The Gorgeous Chef (S01E51)
In Loguetown, Luffy and Zoro eat at a restaurant, with Luffy eating by far the most, despite none of them having any money to pay for it.
Luffy, Completely Surrounded! Admiral Nelson's Secret Plan (S01E59)
Luffy inflates himself once again. This time, he stops the cannonballs fired from Admiral Nelson's crew.
Angry Finale! Cross the Red Line! (S01E61)
With the rudder broken, Luffy jumps off the ship and inflates himself to prevent the ship from crashing into the wall during a tense storm.
A Pirate-Loving Town? Arrival at Whiskey Peak (S02E02)
Luffy and his crew take part in a celebration at Whiskey Peak. Here, Luffy eats so much food, he becomes stuffed and tires out three consecutive chefs.
The Alabasta War Front! City of Dreams, Rainbase (S04E13)
Luffy once again uses his inflation powers to elude Crocodile and his crew. Luffy lands near horse corall and deflates himself.
Sand Croc and Water Luffy! The Second Round of the Duel (S04E30)
To defeat Crocodile Luffy drinks a barrel full of water to become "Water Luffy." Unfortunately, Luffy has a leak inside him, but fixes it very quickly by holding it in his mouth then swallowing it
I Will Surpass You! Rain Falls in Alabasta (04E34)
Luffy inflates himself in an attempt to finish off Crocodile in a crumbling temple.
The War Draws to a Close! Ringing Far and Wide, the Proud Fantasia (S05E50)
Both Lufy and Usopp eat a giant bag full of food, gaining huge bellies in the process.
Z's Ambition! Lily the Little Giant (S15E59)
Z's Ambition! Luffy vs. Shuzo!
The Numerous Rivals Struggle Amongst Themselves - The Raging Monsters of the New World (S17E118)
While he and his allies were feasting with a banquet after Donquixote Doflamingo's defeat, Luffy gained weight when he ate a ton of food.
The Devil's Fist! A Show Down! Luffy vs. Grount! (S18E36)
After taking the rations from a Marine Base on Fron Island, the Sanji Retrival Crew ate all of the food they took in ten whole minutes with bloatings from Pedro, Pekoms, Chopper (probably), & especially Luffy.
After catching a huge fish, Luffy bloated up again from eating it despite not eating the whole thing and that the fish was poisonous to begin with.
Chopper's Kingdom on the Island of Strange Animals
After meeting up with Chopper, Luffy gets treated to a massive fruit buffet, with which he proceds to stuff himself with; so much so, that he even blocks the cave entrance temporarily.
Dead End Adventure
In the beginning of the movie, Luffy is shown devouring a huge pile of food in a bar, happily patting his belly afterwards, despite still feeling hungry.
OVA and Specials
TV Special 4
Luffy, in an alternate reality in feudal Japan, manages to pay for a lot of food in Nami's and Sanji's restaurant, with he proceeds to eat all up.
Episode of Luffy
Heart of Gold
In the beginning of the OVA a new Character named Olga stuffs herself with all kinds of foods.
After that, her ship got attacked by a crew who searched for the pure gold and she escaped to the ship of the straw hats. Where she eats a lot of Sanji´s food and gets a stuffed belly.
Later the crew got attacked by the Gold Hounter Mad Treasure and his crew. Both crews were swallowed by a giant fish and Luffy and Olga were separated from the rest of the Straw Hats. In the stomach of the fish there is an island on which Luffy and Olga stuff their bellies.
One Piece: Unlimited Adventure
One Piece: Unlimited Cruise
One Piece: Pirate Warriors