\Bag"pipe\, n.
A musical wind instrument, now used chiefly in the Highlands
of Scotland.
Note: It consists of a leather bag, which receives the air by
      a tube that is stopped by a valve; and three sounding
      pipes, into which the air is pressed by the performer.
      Two of these pipes produce fixed tones, namely, the
      bass, or key tone, and its fifth, and form together
      what is called the drone; the third, or chanter, gives
      the melody.

\Bag"pipe\, v. t.
To make to look like a bagpipe.
{To bagpipe the mizzen} (Naut.), to lay it aback by bringing
   the sheet to the mizzen rigging. --Totten.