JADE. A long term of imprisonment.
JAGGER. A gentleman.
JAGUE. A cut; a ditch.
JAM. A gold ring.
JAMMED. Killed; murdered; hanged.
JANASMUG. A go-between; one who goes between the thief and the fence.
JANAZARIES. A mob of pickpockets.
JAPANNED. A convict is said to be japanned when the chaplain pronounces him to be converted.