n. A freebooter: in history, a name distinctively applied to the West Indian bucaneers or pirates of the seventeenth century. See bucaneer.n. Hence One of a band of men organized, in disregard of international law, for the purpose of invading and revolutionizing a foreign state.n. In a legislative or other deliberative body, a member in the minority who resorts to irregular or obstructive tactics to prevent the adoption of a measure or procedure which is favored by the majority. Also filibusterer.To act as a freebooter or bucaneer.To obstruct legislation by undue use of the technicalities of parliamentary law or privileges, as when the minority in a legislative assembly, in order to prevent the passage of some measure obnoxious to them, endeavor to consume time or tire out their opponents by useless motions, speeches, objections, etc.