billy club n 1: a short stout club used primarily by policemen [syn: {truncheon}, {nightstick}, {baton}, {billy}, {billystick}, {billy club}]
Billy club \Bil"ly club`\, n. see {billy}, n. 1. [PJC] Billycock
billy club \billy club\ n. a policeman's club; a nightstick. Syn: truncheon, nightstick, billy, billy club. [WordNet 1.5]
Billy \Bil"ly\, n. 1. A club; esp., a policeman's club. Also called {billy club} [1913 Webster +PJC] 2. (Wool Manuf.) A slubbing or roving machine. [1913 Webster]