Earlier quoted context omitted.
He's saying someone who is very overweight, I assume. I felt he was saying it in a diplomatic fashion?
Okay, I guess I can see that. Would have been clearer if they just said what they meant. I live somewhere (not in America) where having 3 kids and hating kale means you look normal. It isn't some code for "very overweight".
Also I assumed the gender of the original comment, could be a she, if so, I apologize. I use he in a generic way, but seeing your post you used they.