What is a "Creepy Assed Cracker"?

Randy Newman is one of my favorite writer / musician / performers. He has family roots in Louisiana and, in his early music, he wrote about some of the cultural paradoxes he saw in that area of the south. 

Mr. Newman's style is very much satire, and because he plays the role of an innocent observer, he gets away with some observations others might not be able to pull-off without being considered unreasonably offensive.* Notice how he uses the word 'cracker' in his song "Louisiana 1927".

In a tribute to Louisiana, after Hurricane Katrina, Aaron Neville performed a "cover" of Randy Newman's song "Louisiana 1927". I read somewhere that Aaron Neville found the word 'cracker' so offensive he substituted the word farmer for cracker. Notice that Aaron Neville's lyrics are word-for-word the same as Randy Newman's except for the one change (cracker to farmer).

Wikipedia the origins of the Southern term "cracker":

Cracker, sometimes white cracker or cracka, is a sometimes racist expression for white people,[1] especially poor rural whites in the Southern United States. In reference to a native of Florida or Georgia, however, it is sometimes used in a neutral or positive context and is sometimes used self-descriptively with pride.[2]

There are multiple explanations of the etymology of "cracker", most dating its origin to the 18th century or earlier.

One of the earliest etymological theories traces this term from Middle English word "cnac" or "craic" which originally meant the sound of a cracking whip, but came to refer to any loud noise, and is attested to by an 18th century letter to the Earl of Dartmoor, given below. In Elizabethan times this could refer to "entertaining conversation" (one may be said to "crack" a joke) and could be used to describe loud braggarts; this term and the Gaelic spelling craic are still in use in Ireland, Scotland and Northern England. It is documented in Shakespeare's King John (1595): "What cracker is this same that deafs our ears with this abundance of superfluous breath?"[3][4]

* For an example of Randy Newman's ability to use satire to say things that otherwise might be considered offensive and not politically correct watch this performance of his song about the slave-trade titled, "Sail Away".