Bilge - The lowest part of the ship, it's usually dank and musty and considered the filthiest space on the ship/Nonsense, foolish talk (Intermediate)

Bilged on her Anchor - A ship pierced by its own anchor (Intermediate)

Bilge Rat - A rat living in the bilge of a ship. It's considered the lowliest creature by pirates, but many pirates take to eating the animals to survive/An insulting name given by a pirate (Noob)

Black Spot - A black smudge on a piece of paper used by pirates as a threat (it will specify the threat, but it's mostly a death threat) (Noob)

Blimey! - An exclamation of surprise (Noob)

Blow the Man Down - To kill someone (Noob)

Booty - Treasure (NOOB)

Bounty - Reward/payment, usually from a government, for the capture of a criminal, specifically a pirate (Noob)

Bring a Spring Upon Her Cable - To come around in a different direction (Master)

Bucko - Friend (Noob)