"Tracy Harper may not care if fashionable chubby-sizes are hard to find — but her Mother does. And so does Sears." [Contexts]
Can I be evil and say that if we don't think that's "chubby" maybe we've all gotten used to being large? She isn't chubby, by today's standards. But doesn't it say something about how *few* chubby people (just going with their terminology here) there were at the time that this cute girl is even put in the category?
(I speak as a larger woman, just, y'know, if you need some context.)