The Canadian Navy has it's own terminology and slang that is still evolving to this day. Much of the language used is still derived from the Royal Navy, although as Canadians many local customs and slang have come about.
Machinery Control Room - The space from which the operation of the main propulsion are controlled.
Mae West - A Second World War personal flotation device used to keep people afloat in the water; named after the 1930s actress Mae West, well known for her large bosom.
Maggie (the) - HMCS MAGNIFICENT, and aircraft carrier that served in the Canadian navy in the post-war era.
Magnetic North - The direction towards the North Magnetic Pole.
Main Broadcast System - The one-way announcement system on a warship. Used for general announcements, and to transmit alarm signals such as the General Alarm.
Main Deck - The uppermost continuous deck extending from bow to stern.
Main Engines - The main propulsion system for a warship.
Mainbrace - One of the braces attached to the mainmast.
Mainguy Report - Admiral Rollo Mainguy's report on mutiny incidents in the post WWII years of the RCN.
Mainmast - The tallest mast on a ship.
Mainstay - The stay running from the top of the mainmast to the bottom of the foremast
Make a Hole! - The shout of a seaman that has a priority to use a ladder or a narrow passageway, and wishes for the current occupants to move aside quickly.
Make And Mend - Half day during working week that was originally set aside to repair and replace kit. Today it is used as an opportunity for recreation.
Make Fast - To tie off a line.
Makee-learnee - Pidgin English (Chinese origin) for someone who is a novice, but is learning on the job. Sometime referred to as "Mickey Learnee".
Makers - A shortened nickname for "Make and Mend", which is an afternoon off.
Making Way - When a vessel is moving under its own power.
Man Overboard - 1. The situation when a person falls into the water. 2. The verbal alarm that is raised when a seaman has fallen overboard.
Mandraulic - Completing a heavy lifting job using muscles and brute force, rather than lifting equipment.
Maneuvering Board - A printed compass rose with polar coordinates that are used, together with parallel rulers and dividers, to solve problems of relative movement of ships, such as closest point of approach and intercept course calculation.
Manila - A reference to manila fibre rope which replaced hemp as the general type of rope in the navy. Manila hemp is a type of buff-colored fiber obtained from Musa textilis, a relative of the banana plant. Today, natural fibre cordage has been mostly replaced by cordage made from synthetic fibre, such as nylon.
Manking - Complaining in a repetitive manner.
Manning Ship - In a ceremonial display, all hands appear in a line on deck or aloft and grasp the guardrails. Originally, in the days of sail, the crew grasped the rigging. The reasoning behind this tradition was to show that guns were not manned and no small arms were carried. In the USN is it referred to as "Manning the Rails".
MARCOM - Maritime Command.
Mark - 1. A designation system for military hardware, eg. "Mark 46 Torpedo". 2. A spoken word which denotes a specific moment in time, eg. "'Bearing 280, Mark!" means that the bearing was 280 degrees at exactly the time when the word "Mark" was spoke.
Mark 1 Eyeball - Simply, a visual inspection using one of the best instruments known to man.
MARLANT - Maritime Forces Atlantic. The east coast formation of the Canadian Navy.
Marlin Spike - A metal spike or part of the Seaman's knife used to open up the lay of a rope for splicing. Older sailors would often refer to the ideal sailor as "having every finger a marlin spike".
Marline - A loosely twisted, two-line light cordage used especially for seizing and as a covering for wire rope. Its most common variant is tarred marline.
MARPAC - Maritime Forces Pacific. The west coast formation of the Canadian Navy.
Marry - Clutching two parallel lines together in your hands and pressing them together, using the friction between the lines to hold them fast. When the ship's berthing hawsers are doubled-up, the second hawser is "married" to the first while a seaman takes turns on the bollard.
Marry the Gunner's Daughter - An old naval expression meaning to be laid over a gun and receive a thrashing.
MARS Officer - Short for Maritime Surface. Responsible for navigating and fighting the ship.
Mast Stepping Ceremony - An event which occurs towards the end of a ship's construction, and involves the placing of coins underneath the mast of a ship. Today, the coins are normally welded beneath the radar mast. Done to propitiate the gods and bring good luck.
Master - The captain of a commercial vessel.
Master Seaman - This appointment is unique to the Canadian Navy, and was created to accommodate the unified rank structure of the Canadian Armed Forces. It is equivalent to Master Corporal in the Canadian Army and Air Force. The rank insignia of a Master Seaman is two chevrons surmounted by a maple leaf. Sometimes referred to as "Master Killick" or "Master Jack".
Master-At-Arms - A non-commissioned officer responsible for discipline on a naval ship. Standing between the officers and the crew, and commonly known in the RN as "the Buffer". In the RCN this position has been replaced by the Ship's Coxswain.
Masthead - The very top of the mast.
Matelot - A sailor, in the French language. English speaking sailors also use this term to describe an ordinary sailor. The term "Matey" was originally derived from this term.
Matey - A civilian dockyard worker.
Mayday - A distress call via radio. Derived from the French "m'aidez" which means "help me".
MCDV - Maritime Coastal Defence Vessel.
Meathead - A member of the Canadian Forces Military Police.
Medevac - The urgent evacuation of a patient in circumstances where they need medical assistance ashore.
Merchantman - Any non-naval passenger or cargo-carrying vessel, including cargo ships, tankers, and passenger ships.
Merge - The point at which two radar contacts join and become one.
Meridian - An imaginary line joining the Earth's poles. The prime meridian is the meridian that passes through Greenwich, England and represents zero longitude.
Mess - 1. An eating place aboard ship. 2. A club where a group of sailors socialize, including imbibing in alcoholic beverages, either onboard ship or ashore.
Mess Mom - The senior hand of a mess, responsible for the cleanliness and good order of the mess.
Mess Traps - Food utensils.
Messdeck - An area where a group of sailors live together.
Messdeck Justice - Informal punishment meted out by mess-mates, usually for petty theft or slovenly living.
Messenger - When preparing a tow, the messenger is a length of light line which can be cast, propelled or floated considerably further than the towline, and which can be used to transfer the towline to the tow. Often made of polypropylene line, which floats.
Metacenter - The midway point between a vessel's center of buoyancy when upright and her center of buoyancy when tilted.
MFRC - Military Family Resource Centre.
Mick - Short for a hammock. The last ships to have micks in the RCN were the Tribal class destroyers decommissioned in the early 1960s.
Midrats - Food served at midnight, for middle watch standers. The dregs are often scooped up by the first watch before they go to their racks.
Mids/Middle - The middle watch, and least favorite of all, since it runs from midnight until 0400.
Midshipman - 1. During the 17th century, a naval rating for an experienced seaman. 2. From the 18th century, a naval commissioned officer candidate. 3. From the 1790s, an apprentice naval officer. 4. From the 19th century, an officer cadet at a naval academy. 5. In contemporary RCN usage, the term is sometimes used for a second year Naval Cadet.
Military Tattoo - A military performance of music or a display of armed forces in general. The term comes from the early 17th century Dutch phrase "doe den tap toe" ("turn off the tap"), a signal sounded by drummers or trumpeters to instruct innkeepers near military garrisons to stop serving beer and for soldiers to return to their barracks. The tattoo was originally solely made up of military music, but has now evolved into more elaborate shows involving theatrics and musical performances.
Mind your P's and Q's - In the days of sail when sailors were paid a pittance, seamen drank their ale in taverns whose keepers were willing to extend credit until payday. Since many salts were illiterate, keepers kept a tally of pints and quarts consumed by each sailor on a chalkboard behind the bar. Next to each person's name, a mark was made under "P" for pint or "Q" for quart whenever a seaman ordered another draught. Also, on payday, each seaman was liable for each mark next to his name, so he was forced to "mind his P's and Q's" or he would get into financial trouble. To ensure an accurate count by unscrupulous keepers, sailors had to keep their wits and remain somewhat sober. Sobriety usually ensured good behavior, hence the meaning of "mind your P's and Q's".
Miss HMCS _____ Contest - An impromptu beauty contest held on HMC ships. Oddly enough, even in the days when the entire ship's company consisted of men there were usually enough bikinis and evening gowns onboard to properly outfit the contestants.
MND - Minister of National Defence.
Moaning and dripping - Complaining.
Mob - The Canadian Forces. eg. "Is he still in the Mob?" Somewhat reminiscent of the same use of the term to refer to the mafia.
MOBEX - Man Overboard Exercise
MOC - Military Occupational Code. An organizational code that describes a sailor's role, or job.
Mod - Modification to a piece of ship's equipment.
Molar Mangler - The Dentist.
Molly - Scullery worker. Also see "Scullery Slut".
Monkey Fist - The complex knot surrounding (sometimes taking the place of) the weight on the end of a heaving line.
Monkey on a Stick - Any foreign food that is ingested by sailors on a port visit. More so, if the item is actually served on a stick.
Monkey's Island - A raised part of a ships bridge around the compass binnacle.
Moose Milk - A tasty beverage created by mixing dark rum and ice cream in a large punch bowl or pail. There are several differing recipes containing other ingredients such as Kahlua liqueur, vodka, Tia Maria, milk or egg nog, but the main ingredients remain as dark rum and ice cream. A Moose milk party is often referred to as "Moosers".
Morse Code - A method of transmitting text information through a language of long and short tones. At one time, morse code was the main method of communication between naval ships and the shore.
Mouse - To secure a hook by winding a line around a hook, so that the gap in the hook is closed off.
MRU - "Much regrets unable", a negative response to the invitation "RPC". The opposite of "WMP", which stands for "With much pleasure".
Muppet - A sailor with poor aptitude and competence.
Muscle Boatswain - 1. Someone who enjoys body-building and weight-lifting. 2. Physical fitness training staff.
Mushroom (Feel like a) - How a sailor complains that they are kept in the dark and fed shit.
Mustang - An officer commissioned from the ranks.
Mustang Suit - A full body waterproof neoprene suit used for small boat operations in foul weather.
Muster - 1. The formal inspection of issued equipment which is been laid out in any manner is a kit muster. 2. An order to group together at a location, as in the pipe "All hands muster on the quarterdeck".
Muster by the Open List - This is a muster of the entire ship's company, wherein each member reports name, rank and duties on board. This practice originated in the Royal Navy, to counteract the practice of some ship's pursers of having non-existent people on the ship's rolls (and thereby pocketing the pay and benefits of these non-people).
My Party - A sailor's best gal... or man for that matter.
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