one who, or that which, blows.-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.-a blowing out or excessive discharge of gas from a hole or fissure in a mine.-the whale; -- so called by seamen, from the circumstance of its spouting up a column of water.-a small fish of the atlantic coast (tetrodon turgidus); the puffer.-a braggart, or loud talker.