Rig \Rig\, n. [Cf. {Wriggle}.] 1. A romp; a wanton; one given to unbecoming conduct. [Obs.] --Fuller. 2. A sportive or unbecoming trick; a frolic. 3. A blast of wind. [Prov. Eng.] --Wright. That uncertain season before the rigs of Michaelmas were yet well composed. --Burke. {To run a rig}, to play a trick; to engage in a frolic; to do something strange and unbecoming. He little dreamt when he set out Of running such a rig. --Cowper.