Shibo Shibo no Mi

The Shibo Shibo no Mi is a Paramecia-type Devil Fruit that endows its consumer with the ability to manipulate and process the body fat in their body, with a variety and an array of creative techniques available to the consumer's convenience. It possesses a rather strange and joking ability that allows the consumer to convert their body fat into nutrients and store nearly an infinite amount of food inside their stomachs without visibly making them fat, thus jokingly gaining admiration from those who have seen its power. It is called the Fat Fat Fruit in the FUNimation dub.

It was consumed by Umikohai.

Strength
The Shibo Shibo no Mi's most prominent strength is that it bestows upon its consumer the ability to manipulate body fat in a variety of ways. As a supportive ability, the user is granted the unusual ability to be able to store an infinite amount of food inside their stomach without visibly making them fat and process their body fat into nutrients, with the user himself even ridiculed for its insane ways. One of its most unique abilities is that it allows the user to survive blunt attacks without Haki, much like how the Gomu Gomu no Mi works, though this is not because the user is made of rubber, but because the user is able to manifest his body fat as a safety cushion and bounce the attack right back at the opponent.

Weaknesses
The user suffers the standard Devil Fruit weaknesses, as well as having their body weight and mass go on a regular scale, thus slowing down the user, though this weakness can be easily solved. However, due to the nature of the fruit, cutting techniques seem to work best on this fruit, since it makes the user bleed as twice as normal. Also, Haki-imbued blunt attacks are able to do great and visible harm to the user. Also, the user risks vomitting out the food they have eaten if they eat too soon after using this ability, thus nullifiying the ability temporarily.

Trivia

 * The picture is based off Mansam's Knocking from Toriko.