Georgia Cracker refers to the original American pioneer settlers of the Province of Georgia (later, the State of Georgia), and their descendants.
In the late 19th century and the early part of the 20th century, Georgia ranchers came to be known as "Georgia Crackers" by Floridians when they drove their cattle down into the grassy flatlands of Central Florida to graze in the winter, stopping where the citrus groves began. In order to get the cattle's attention they became very adept at cracking a bullwhip.
The term "cracker" was in use during Elizabethan times to describe braggarts. The original root of this is the Middle English word crack meaning "entertaining conversation" (One may be said to "crack" a joke; a witty remark is a "wisecrack"). This term and the Gaelic spelling "craic" are still in use in Ireland and Scotland. It is documented in Shakespeare's King John (1595): "What cracker is this... that deafes our eares / With this abundance of superfluous breath?"
By the 1760s the English, both at home and in the American colonies, applied the term “Cracker” to Scotch-Irish and English settlers of the remote southern back country, as noted in a passage from a letter to the Earl of Dartmouth: "I should explain to your Lordship what is meant by Crackers; a name they have got from being great boasters; they are a lawless set of rascalls on the frontiers of Virginia, Maryland, the Carolinas, and Georgia, who often change their places of abode." The word was later associated with the cowboys of Georgia and Florida, many of them descendants of those early frontiersmen.