The Collaborative International Dictionary of English v.0.48:

Borachte \Bo*rach"te\, n. [Sp. borracha a leather bottle for
   wine, borracho drunk, fr. borra a lamb.]
   A large leather bottle for liquors, etc., made of the skin of
   a goat or other animal. Hence: A drunkard. [Obs.]
   [1913 Webster]

         You're an absolute borachio.             --Congreve.
   [1913 Webster]