Per Wiki, "In the late 1800s, at baseball’s inception, the phrase “chin music” was used to describe razzing or heckling from the fans. It began being used as a synonym for a brushback pitch around World War II."
Bill Hinds
August 01, 2014
Per Wiki, "In the late 1800s, at baseball’s inception, the phrase “chin music” was used to describe razzing or heckling from the fans. It began being used as a synonym for a brushback pitch around World War II."