The phrase "Did Wild Bill Kill His Dentist?" refers to a popular but unfounded story about the famous American frontiersman James Butler "Wild Bill" Hickok. The story claims that Hickok, known for his quick draw and deadly aim, shot and killed his dentist after the dentist had performed a painful tooth extraction. However, there is no historical evidence to support this claim, and it is widely considered to be a tall tale or fabrication.
Despite its lack of factual basis, the story of Wild Bill and the dentist has persisted in popular culture, appearing in movies, TV shows, and even a song by Bob Dylan. It is often used as an example of the exaggerated and often inaccurate stories that have grown up around the legends of the Wild West.