1. One who, or that which, blows.
  2. A device for producing a current of air; as: (a) A metal plate temporarily placed before the upper part of a grate or open fire. (b) A machine for producing an artificial blast or current of air by pressure, as for increasing the draft of a furnace, ventilating a building or shaft, cleansing gram, etc.
  3. A blowing out or excessive discharge of gas from a hole or fissure in a mine.
  4. The whale; -- so called by seamen, from the circumstance of its spouting up a column of water.
  5. A small fish of the Atlantic coast (Tetrodon turgidus); the puffer.
  6. A braggart, or loud talker.