Source : Webster's Revised Unabridged Dictionary (1913)

Broach \Broach\, v. t. [imp. & p. p. {Broached}; p. pr. & vb. n.
   {Broaching}.] [F. brocher, fr. broche. See {Broach}, n.]
   1. To spit; to pierce as with a spit.

            I'll broach the tadpole on my rapier's point.
                                                  --Shak.

   2. To tap; to pierce, as a cask, in order to draw the liquor.
      Hence: To let out; to shed, as blood.

            Whereat with blade, with bloody blameful blade, He
            bravely broached his boiling bloody breast. --Shak.

   3. To open for the first time, as stores.

            You shall want neither weapons, victuals, nor aid; I
            will open the old armories, I will broach my store,
            and will bring forth my stores.       --Knolles.

   4. To make public; to utter; to publish first; to put forth;
      to introduce as a topic of conversation.

            Those very opinions themselves had broached.
                                                  --Swift.

   5. To cause to begin or break out. [Obs.] --Shak.

   6. (Masonry) To shape roughly, as a block of stone, by
      chiseling with a coarse tool. [Scot. & North of Eng.]

   7. To enlarge or dress (a hole), by using a broach.

   {To broach to} (Naut.), to incline suddenly to windward, so
      as to lay the sails aback, and expose the vessel to the
      danger of oversetting.

Source : WordNet®

broached
     adj : of a cask or barrel; "the cask was set abroach" [syn: {abroach}]