When one self-proclaims themselves an 'expert' or know-it-all on a said subject of a documentary or documentaries they have watched; when they never actually went to school to study or experience said subject.
Documentary Expert: "America was discovered in 1492 by Columbus, I have watched tons of documentaries on it."

Guy that actually knows something: "No you idiot, America was actually discovered over 400 years before Christopher Columbus even laid his eyes on it."
by AndrewTFowler March 17, 2012
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