Blue pigeon filers, or flyers, thieves who steal lead from the tops of houses and churches
Blubber, to whine, to cry
Bluff, to bustle, look big
Bluffer, an impudent imposing fellow of an inn-keeper
Blunderbuss, a stupid ignorant fellow
Blunt, tip, rag, money
Boarding school, a house of correction, or prison
Bob, a shilling
Bob, a shoplifter’s assistant
Bob-stick, a hog, a shilling