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A non-existent information source cited in research when published sources do not exist (e.g., anecdotal information, unpublished industry knowledge), or when presented material was spontaneously created by the author (e.g., a novel framework to explain a business issue). Derived from the phrase 'pulled it out of my ass', contemporized to the age of the Internet.
Antoine: Where did you get all this industry information from? I thought there were very few published studies to research from.

Anthony: MyAss.com
by Anthony Leong April 28, 2005
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