Sentence:  This also is to be as silly as that jolt-headed <WSD>loblolly</WSD> of a carter, who, having laid his waggon fast in a slough, down on his marrow-bones was calling on the strong-backed deity, Hercules, might and main, to help him at a dead lift, but all the while forgot to goad on his oxen and lay his shoulder to the wheels, as it behoved him; as if a Lord have mercy upon us alone would have got his cart out of the mire. 
Meaning of the word marked with <WSD> tags:  A bumpkin or lout.