What do you call a soft drink: pop, soda, or coke? Your answer says more than just word preference; it says a lot about the area of the country where you grew up. Valerie Fridland, Professor of Linguistics at the University of Nevada and Author of Like, Literally, Dude: Arguing for the Good in Bad English, joins John and crew to explain the reasoning behind regional speech patterns. Plus, she leads them through a fascinating dialect quiz.