Fat kitty cat

‘It’s not that I don’t want to lose the weight, doc. It’s just that I find it so hard to motivate myself after Mrs. Jinglepuss left me for my best friend, Fluffy McMittenpaws.’

That is the cat's owner trying to fat shame him. Won't work.

That cat is "O Lawd He Comin"
Here's the chart for reference: https://i.imgur.com/SrtYVIr.jpg

I’ve seen this meme probably about 5,000 times and it’s still not funny.