GIGGER,
a Door, Dub the Gigger, that we may ravage the Ken, i. e. Open the Door with the Pick-lock, that we go in and rob the House.
a Door, Dub the Gigger, that we may ravage the Ken, i. e. Open the Door with the Pick-lock, that we go in and rob the House.
Entry taken from 1736 Canting Dictionary, by Nathan Bailey.
Gigger in the 1811 Vulgar Tongue
Also see examples in Canting Songs and Slang Rhymes collected by John S. Farmer (1896).