American here, only every heard it meaning someone who likes fancy food.
Never heard of it being a fat person, except in so far as the word is old fashioned enough to conjure the image of a fancy dressed fat person eating fancy food.
I have lived in the United States for all of my 59 years and have never heard or seen it used as meaning anything other than glutton.
Which is really no better evidence than you offer.
Re:I Want to Live Like Costco People
by stasomatic on Friday May 08, 2026 @08:07AM
(#48061917)
Same. "Gourmand" has always been linked to "gourmet" in my brain. However wrong according to the "dictionaries", I've seen it mean the same in colloquial use in a couple of languages I'm familiar with.
Try harder.
Gourmand still, in large parts of the English speaking world, carries large overtones of excessive eating under the guise of quality eating.
If I were to make a guess, I suspect that in your part of the world some of the French persuasion made frequent reference to those that overstack their plates as gourmands and it has since locally become synonymous with gourmet as the troll escaped them.