Found 2 items, similar to billy club.
English → English (WordNet)
Definition: billy club
billy club
n : a short stout club used primarily by policemen [syn:
truncheon,
nightstick,
billy,
billystick]
English → English (gcide)
Definition: billy club
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]