I call my dick diabetes Because you're more likely to get it when you are fat.
Is this comment just a joke?
I call it that because diagnosis comes when you are really fat and I think fat people are desperate for affection.
It is pretty rude to feel that fat people are desperate for attention. It makes sense that you are simply saying a joke, however you want to be careful not to upset someone when your intention was to get a laugh. Just hope you realize how this comment can be seen by some people so you do not get yourself into any trouble.