I work with a guy who is 5'10 and probably weighs around 170. I run into him at walmart about a year ago with his wife and kids, and almost fell over! This dudes wife was at LEAST 350, possibly up to 400. He mentions it the next time I see him at work, and saws that his motto is "if they ain't 280, they ain't a lady!!".
The crazy fucker told me that he's never dated a girl that isn't under 250. lol