The Unhelpful High School Teacher Meme is really the "I resent being educated by a woman" meme. This Unhelpful Teacher is generally painted as "bitchy" or "incompetent." Now that idiotic ideas like "women's brains are smaller so they must be less intelligent" or "women have weak nerves" have been proven wrong, sexists have to use adjectives that are so vague as not to actually mean anything. That way they can't be forced to admit that maybe they are just shitty students.