There are over 370 terms, slang, idioms and expressions from the world of Snowboarding here,
http://www.abc-of-snowboarding.com/snowboarddictionary.asp , including references to tricks, snow conditions, boarders, fans, and other people in the sport.  Too many to post but just click on the link and have fun learning how to talk like and understand a snowboarder.  Enjoy the 2010 Vancouver Winter Olympics!
http://www.abc-of-snowboarding.com/snowboarddictionary.asp