Peckerwood
Peckerwood is the inverse of the word woodpecker. In most parts of the country where the word originated, the woodpecker is considered to be a pest and or nuisance. Like other words sharing a similar meaning (a nuisance, bother, pest etc.), it quickly became a common retort in most social circles and groups of friends. It can also be used as a derogatory term referring to southern whites, similar to "rednecks".