Knight of the blade, a bullying sham captain, a braggadocio
Knights of the rainbow, waiters, footmen, lacqueys
Knowledge box, the jemmy, head
Knuckles, pickpockets
Knuckle dabs, ruffles
Ky-bosh on, to put the, to turn the tables on any person, to put out of countenance
L.
Lady-bird, a sweetheart, bedfellow
Laced woman, a virtuous female
Lady’s man, an obsequious fellow to females