Possible Clues:

• Pocket protector brigade
• Whizzes at quizzes?
• Wonka candy sometimes stuck to a licorice rope
• They can be boringly studious, perhaps lacking social skills
• Square ones
• Victims of jocks, perhaps
• Pocket-protector set?
• They're not in the in crowd
• "The Big Bang Theory" males
• Anoraks put back in cloakrooms — drenched