"Fat cats" is a human insult towards other humans that are paid too much. That phrase has unfortunately been used in connection with my own shape. Inaccurate, because my boxy shape is just the fact that I am a pedigree British type.
Obesity - not just a bit of chubbiness - is a common problem for cats (and humans). Particularly those of us who live indoors and are not allowed out to go hunting and killing. There just isn't much to do except eat.
My friend, Boomer, pictured above was such a cat His human suffered from Alzheimers and couldn't remember if she had fed him or not. So Boomer ate many meals every day.
He finally had to go on a diet. The vet prescribed a diet food that was weighed out every day and he got nothing extra. What he did get, however, was the fun of "hunting" it. Nothing was put in a bowl: it was scattered over the floor or put in a food dispenser.
He had to get his food from home made dispensers - a tennis ball with a hole cut in it, pizza package with wholes, a cardboard pill container with the food just put inside, a large box which he had to jump inside, the windowsill so he had to jump up to it, a plastic water bottle with holes in it and lavatory rolls with holes.
He frequently asked for more food and his requests were not ignored. Instead, he was offered games with fishing rod toys.
His before photo is at the top of this blog: his after photo at the bottom. There are more photos at www.catexpert.co.uk under the heading of "Indoor only cats."