[5][6][7] According to military historian Paul A. Kramer, the term originally had "connotations of bewilderment and confusion", due to the guerrilla warfare in which the soldiers were engaged.
[note 2][8][9] When used generally, the term refers to a mountainous area with a connotation of being rustic or uncivilized.
When referring to people (taga-bundok or probinsiyano in Tagalog; taga-bukid in Cebuano; English: "someone who comes from the mountains/provinces"), it is sometimes used to connote a stereotype of naive or boorish countryside dwellers.
The term evolved into American slang to refer to the countryside or isolated rural/wilderness area, regardless of topography or vegetation.
Similar slang or colloquial words are "the sticks", "the wops", "the backblocks", or "Woop Woop" in Australia, "the wop-wops" in New Zealand, "bundu" in South Africa (unrelated to "boondocks" or "bundok"), "out in the weeds" in New Brunswick and "out in the tules" in California.