What does BARRETRY mean? March 25, 2017 All Dictionary BARRETRY meaning in Law Dictionary In criminal legislation. The work or offense of a barretor, (q. v.;) often called "common barretry." The offense of often interesting and stirring up matches and quarrels, either at law or otherwise. 4 Bl. Comm. 134; 4 Steph. Comm. 262.