I've got something soviet thus horrible for you guys.
Its a cartoon from 1986.
Its main character is a boy. It features obesity, stuffing, weight gain, inflation (from a fucking gas station-styled drinks pump), slight foot fetish, enforced immobility, health issues.
It's all packed tight in less than 10 minutes of footage.
IMDB page:
https://www.imdb.com/title/tt4544302/
The brave may behold it here:
https://rezka.ag/cartoons/short/51827-nehochuha-1986.html
P.S. No need to learn language. Main fella is just too lazy to do anything and dreams of a land, where you don't need to do anything but enjoy. The sexy fella needs some heart medicine when main fella says he actually wants to do something.