Bob Garfield and Mike Vuolo talk to Jesse Sheidlower, author of The F-Word, about a recent discovery in the history of one our most enduring expletives. Lexicon Valley is brought to you by The Message, a new podcast series from GE Podcast Theater Join Slate Plus! Members get bonus segments, exclusive member-only podcasts, and more. Sign up for a free trial today at www.slate.com/podcastsplus. Twitter: @lexiconvalley Facebook: facebook.com/LexiconValley Email: lexiconvalley@slate.com

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