A country clodhopper: from the shoes of country farmers and ploughmen being commonly stuck full of hob-nails, and even often clouted, or tipped with iron. The Devil ran over his face with hobnails in his shoes; said of one pitted With the small pox.
Definition taken from The 1811 Dictionary of the Vulgar Tongue, originally by Francis Grose.
Hobby Horsical * Hobson’s ChoiceNathan Bailey's 1736 Dictionary of canting and thieving slang
John S. Farmer's collection of canting songs and slang rhymes