fun with racial slurs

At my last writer's meeting somebody questioned my use of the racial slur "cracker," so I got curious and did some new digging; new resources crop up all the time. I knew 'cracker' was pre-Civil War but didn't know it was pre-Revolution:





cracker (n.2) 
Southern U.S. derogatory term for "poor, white trash" (1766), probably an agent noun from crack (v.) in the sense "to boast" (as in not what