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To be suspicious that a given party is being less than forthcoming about their gender.
Look at the adam's apple on that woman, I'm a bit transpicious about her.
by Steven Sultan November 14, 2007
A woman whose facial features, body shape, voice, or gait causes the casual observer to wonder if she is transexual
Gary showed his ticket to Wanda, the sour, transpicious morning conductor, and boarded his train for work
by Ivy League Redneck December 09, 2013