Is there a term for the way words feel when they’re spoken that has nothing to do with their meaning? The word “suitcase” feels nice to say, unlike rural. “Cellar door” certainly has a different quality than “moist ointment.” Mouthfeel is an oft-noted concept. But in his book Alphabet Juice, Roy Blount Jr. says of his favorite term to enunciate: polyurethane foam. His reason? “It’s just so sayable.” This is part of a complete episode.