Green’s Dictionary of Slang

rig n.2

[? dial.]

1. [mid-18C+] (also rigg, rigging) a dodge, a confidence trick.

2. [late 18C–mid-19C] ridicule, mockery.

3. [late 18C–1900s] a prank or game.

In compounds

rig sale (n.)

[19C] a false sale, a mock auction.

In phrases

run one’s rig upon (v.)

[late 18C–mid-19C] to ridicule.

run the rig on (v.)

1. [late 18C–early 19C] to deceive, to trick.

2. [late 18C] to mock, to ridicule.