the bilge is the part of a ship below the floor boards of the bottom level, just above the hull... ie the darkest and most grim part of the boat. a rat is, well, a small annoying (and to some people, scary) rodent. Therefore the term "bilge rat" is a pirate insult.
by Mad Sam purple'ead January 4, 2005
Get the bilge ratmug. A Stoker or Spanner Wanker in the Royal Navy. Officially, they are Marine Engineering Mechanics or MEMs. Also, it's accurate since they usually spend a lot of time in the underbelly of a ship.
by Mr Rusher August 21, 2007
Get the Bilge Ratmug. Someone who doesn’t own a boat or has no intention of ever owning a boat but enjoys fishing and will do anything to go out in his friends or acquaintance’s boats.
by Barracod May 20, 2019
Get the Bilge ratmug. by River Boyz July 22, 2025
Get the Bilge ratmug.