Yep..

Merriam-Webster's #1 Word of the Year for 2006:
1. truthiness (noun)
1 : "truth that comes from the gut, not books" (Stephen Colbert, Comedy Central's "The Colbert Report," October 2005)
2 : "the quality of preferring concepts or facts one wishes to be true, rather than concepts or facts known to be true" (American Dialect Society, January 2006)