Recent X Games slopestyle gold medal winner Nick Goepper appeared on The Late Show with David Letterman last night. In this short clip from the interview, Nick explains, to the astonishment of Mr. Letterman, what exactly slopestyle skiing is, as it is soon to be introduced to the world at the 2014 Winter Olympics. To watch the full interview, head to CBS.com, and fast forward to the 30:20 mark.