Backfriend - False friend.
Bacon-brains – a Fat head.
Bardlet, Bardling - A bad or false poet.
Bawd - Rogue, rascal, knave (male or female).
Bedswerver - someone who is unfaithful to the marriage bed
Belswager - A swaggering bulley, hence, a pimp
Blowen - A wench.
Blushet - A shy maiden.
Baudstrot - One with a sexy walk
Bird's Nest - A woman’s private parts.
Blowze - A begger's wench.
Boanthropy – the attitude of an ox, “ thou hast become afflicted with boanthropy” (noun – Beotian)
Boggard, Bogshop, Boggish – All terms for the john, jake, or Ajax
Bonaroba - "Good robe" A showy wench, wanton.
Bousy – Bloated by drinking
Bouze - slang term for ale.
Brache - A female dog; Son of a barche a bastard.
Bradypus - An animal resembling a two-toed sloth...an insult.