Rig, n.
1. A romp; a wanton; one given to unbecoming conduct. [Obs.]
2. A sportive or unbecoming trick; a frolic.
3. A blast of wind. [Prov. Eng.]
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.