n. A contrivance consisting of a slat of wood tied to the end of a thong or string, with which the slat is whirled so as to cause an intermittent roaring noise. It is used as a toy, and among some races in certain religious rites. [ Webster 1913 Suppl. ]

n. 1. One who, or that which, roars. Specifically: (a) A riotous fellow; a roaring boy. [ 1913 Webster ]

A lady to turn roarer, and break glasses. Massinger. [ 1913 Webster ]

(b) (Far.) A horse subject to roaring. See Roaring, 2. [ 1913 Webster ]

2. (Zool.) The barn owl. [ Prov. Eng. ] [ 1913 Webster ]