Related Clues:
- One may celebrate Pi Day
- Sheldon Cooper, e.g
- Wonkish sort
- Obsessive hobbyist
- 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
- Physicist in the mad nineties
- Anorak - mostly green, found on road