boon·docks noun plural \#712;bün-#716;däks
Definition of BOONDOCKS
1: rough country filled with dense brush
2: a rural area : out in the sticks : back country
Origin of the word BOONDOCKS:
It was coined by American soldiers stationed in the Philippines following the Spanish–American War as a mispronounced version of the Tagalog(One of the Philippine Languages) word, bundok, which means "mountain".
Here's a blast from the past.