(A). A blow received by a peacemaker, who interferes between two combatants to red or separate them; proverbially, the severest blow a man can receive.
“Said I not to ye, `Make not, meddle not;' beware of the
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894
More on Redding-straik from Infoplease: