The Collaborative International Dictionary of English v.0.48:

Brassy \Brass"y\, n. [Written also brassie and brassey.]
   (Golf)
   A wooden club soled with brass.
   [Webster 1913 Suppl.]

The Collaborative International Dictionary of English v.0.48:

brassie \brassie\ n.
   formerly a golfing wood with a face more elevated that a
   driver but less than a spoon.
   [WordNet 1.5] Brassiere

WordNet (r) 3.0 (2006):

brassie
    n 1: (formerly) a golfing wood with a face more elevated that a
         driver but less than a spoon