Source : Webster's Revised Unabridged Dictionary (1913)

Blarney \Blar"ney\ (bl[aum]r"n[y^]), n. [Blarney, a village and
   castle near Cork.]
   Smooth, wheedling talk; flattery. [Colloq.]

   {Blarney stone}, a stone in Blarney castle, Ireland, said to
      make those who kiss it proficient in the use of blarney.

Source : WordNet®

Blarney Stone
     n : a stone in a castle in Ireland that is said to impart skill
         in flattery to anyone who kisses it