>>101244952Amanda Waller and Hank Hill come to mind.
Depends on what you mean by "fat," Uncle Iroh and Grunkle Stan aren't really skinny. Even Soos, who I assume you're referring to with the OP pic, has a lot of jokes about just him being dumb or dorky, though I'm not sure that's any better.
Little Gideon is fat but not lazy or especially interested in eating.
Other examples that are no better: the jokes about Cartman on South Park are more about him being an asshole, on the Simpsons: Nelson is a total tool, Ralph is retarded, Barney is an alcoholic. All terrible character traits but not primarily how much they love to lie on the couch eating donuts either. Basically it seems like there are fat characters not only about lazy + food but they're usually horrible people.
This thread has probably already mentioned Rose Quartz and whatever other SU characters like Amythest and Greg, though Amythest and Greg sort of do fit "lazy eats a lot" stereotypes and of course RQ is just a disguise. Uh Gertrude from Runaways for comics? That pudgy tech kid from Kim Possible? The fat KND kid? I don't know.
