Over its long history, the American labor movement has displayed a remarkably rich vocabulary for shaming those deemed traitors to its cause.
Some insults, such as “blackleg,” are largely forgotten today. Others, such as “stool pigeon,” now sound more like the dated banter of film noir. A few terms still offer interesting windows into the past: “Fink,” for example, was used to disparage workers who informed for management; it seems to have been derived from “Pinkerton,” the private detective agency notorious for strikebreaking during mass actions like the Great Railroad Strike of 1877.
