Suggests that Swift's poem, The Lady's Dressing Room where he goes above and beyond to paint Celia as a disgusting person, was inspired by his own inability to please a woman. Upon rejection, like so many people, he insults her relentlessly in an attempt to make himself feel better.

A "brocade" is "a rich fabric woven with a raised pattern, typically with gold and silver thread."

How rich does one have to be to wear literal gold?