The Collaborative International Dictionary of English v.0.48:

Clodhopper \Clod"hop`per\, n.
   A rude, rustic fellow.
   [1913 Webster]

WordNet (r) 3.0 (2006):

clodhopper
    n 1: a thick and heavy shoe [syn: brogan, brogue,
         clodhopper, work shoe]