Jobber knot, a tall stupid fellow
Jock gagger, fellows who live on the prostitution of their wives, &c.
Joe, an imaginary person, nobody; as, Who do those things belong to? Joe
Jolter head, a heavy dull blustering landlord
Jones’s, Mrs., the coffee house, privy
K.
Kate, a picklock
Keep up the ball, to live and be jolly
Keep the line, to, to behave with decorum
Ken, a cribb, room