Zach Weinersmith describes Professor Liar. One player gets a field of expertise randomly drawn from two lists of 100 elements (the professor); the other players (the examiners) ask the professor questions, trying to expose that the professor is not in fact an expert on Feminist Mustache Theory. It seems like it could be readily adapted to focus on the specificity aspect of things, rather than the "convincingly bullshit" aspect of things.