What is 197?
The term for a person who is the epitome of social awkwardness, could be decribed as "nerdy," or is in some way just plain weird.
Comes from the course numbers of Washington University physics; 117 is general physics and 197 is "death physics" that attracts only the chess-club type.
"Melvin over there is so 197."
"See that kid with the Yu-Gi-Oh! shirt? Yea, he's a 197 for sure."