breakbone noun 2adjective 1forms 3 noun2 •Breakbone fever.A nickname for the disease is "breakbone" because it feels like your bones are breaking. — 2004 •(dialect, US) A chicken's wishbone. adjective1 •Violent; rough and painful.Shampooing, as employed in Japan, is not exactly the vigorous breakbone manipulation of the Turks at the namman, and which makes one imagine that every joint in the body must have been dislocated. — 1869 formsbreakbones · more breakbone · most breakbone