1) Horn rimmed or otherwise very nerdy eye glasses, typically characterized as something worn by librarians, naughty secretaries, or US Vice Presidential candidates.
2) Perceived by some to be the modern day equivalent of "F Me Pumps," especially when worn by extraordinarily beautiful professional women who are smart, funny and successful.

A Bloomer is someone with a bright outlook on life who is optimistic in nature. Bloomer's frolic in every opportunity to be happy and try to make the most out of life. The opposite of a Bloomer is a Doomer. The term Bloomer originated specifically as a counter to the Doomer on sites especially like 4Chan.