When we stumble, misspeak, or fill our speech with um, er, and uh sounds, we are speaking with disfluencies. Michael Erard wrote a book on the subject called Um…: Slips, Stumbles, and Verbal Blunders, and What They Mean. Learn about what disfluencies are, their cultural perception, and why they may not be such a bad thing from Michael and Katie Gore of Speech IRL. Music in the episode was contributed by Podington Bear.