1 definition by Let's Go SM!
An extremely expensive all-boys private school in Dallas, Texas. Attended primarily by the homosexual or chronically depressed. The students are sent there by there parents so that their sons may enjoy the company of other rich, gay, stupid boys. This way the students may not only meet up with others of their sexual orientation, but also so that they might be in the company of like-minded, or at least similarly stupid individuals.
Person 1: Where do you go to school, little boy?
Person 2: PENIS!
Person 1: I guess that means St. Mark's.
Person 2: PENIS!
Person 1: I guess that means St. Mark's.
by Let's Go SM! January 26, 2014