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1.
An Irishman.

A common expression for a couple of centuries.
Here comes that bog hopper and his goat.
by The Wog Whomper May 01, 2005
 
2.
One who hails from the countryside, commonly used to refer to farmers, though the person in question does not necessarily have to be a farmer to be a bog hopper.
"Mickey Joe is a smelly bog hopper."
by YOREMA August 15, 2003