A word said when a person is presenting themselves as pretentious and/or arrogant in public discussion, such as in a literature class. To fully take advantage of its connotation, one should flip his or her hand on the bottom of the chin several times.
"The similarities between Holden Caulfied and Huckleberry Finn are astounding, both boys searching for the passion in a world that shuns them. And I am quite qualified to comment on the subject, for I studied with the great Dr. Watts, at Princeton no less."
"Auntrenu."(with a chin flip for emphasis)