I don’t mind fat jokes. Most are poorly thought out and merely show the speaker as an idiot. I do salute innovative jibes or ones specialized to someone’s particular corpulence.  I make fun of Jason Ergott for his double chin to the point where I’ve anthropomorphized it and have pondered trying to get it a talk show. I was delighted to learn that my attacks have rubbed off as relayed by the victim.
Jason’s Mom: I bought some plums and they are quite juicy. If you’re going to have one you may want to put a bowl under your chins.
ZING!