A caller with a 25-year-old parrot wonders: How much language do birds really understand? Plus, Knock-knock. Who's there? Boo. Well… you can guess the rest. But there was a time when these goofy jokes were a brand-new craze sweeping the nation. Also, the words coffee and sugar both come from Arabic, as does ghoul. There's a spooky story about its origin. Also, freckle, diamond in the rough, spur of the moment, literary limericks, the pronunciation of divisive, and a cold vs. the flu. Read full show notes, hear hundreds of free episodes, send your thoughts and questions, and learn more on the A Way with Words website: https://waywordradio.org/contact. Be a part of the show: call 1 (877) 929-9673 toll-free in the United States and Canada; worldwide, call or text/SMS +1 (619) 800-4443. Email words@waywordradio.org. Twitter @wayword. Copyright Wayword, Inc., a 501(c)(3) corporation. Learn more about your ad choices. Visit megaphone.fm/adchoices