I enjoyed reading this article (and its accompanying commentary), which is a response to the newest episode of
Mad Men's third season, perhaps ep. 1 or 2 (the one with Ann-Margret). It also perfectly describes Elisabeth Moss's character (Peggy Olson) as
the horny little nerd-bird. Ever since I've started watching the show, I never quite had the words to describe her, but there they are.
Mad Men: Changing the Conversation -- Vulture