Related Clues:

• Trivia night champion, perhaps
• Stereotypical Pi Day celebrant
• Socially challenged one, often
• Anthony Michael Hall role, say
• Buff to an excessive extent
• Superbrainy sort
• Geek spotted in diner, dribbling
• Spend all weekend solving crosswords, say, with 'out'
• Extreme aficionado
• Anorak - mostly green, found on road
• Professor Frink on “The Simpsons,” e.g
• 'Angry Video Game ___' (web series featuring a profane game reviewer)
• Unlikely prom king or queen
• An intelligent but single-minded expert
• One may enjoy studying