Someone who talks a lot when stoned, in the manner of one who has kissed the Blarney Stone (giving them the gift of the gab)
by Captain Hotknives October 08, 2005
"Dude, that Irish exchange student Riley McFinnigan O'Connor smokes more weed than anyone else at this school. He's such a Blarney Stoner."
by amazingASK April 06, 2009