Accessory- Gas. British term for cylinder-discharged gas, used in communications to try to keep the use of it a secret.
Baby's Head- Meat pudding. British field rations.
Balls-up- Confusion.
Beat-up- To dive at an someone with the intent to frighten them.
Binders- A person who is grumbling and moaning always.
Bin- Killed
Blood Wagon- Ambulance
Booze Wine- An alcoholic drink; usually beer.
Brolly- Parachute
Bus- Royal Air Force term for airplane. From the shortened form of omnibus.
C3- Low grade. From the lowest British Army standard of fitness- only good for base duty.
Chap- Man, guy
Cotton Wool- Clouds
Cricket Ball- British Number 15 hand grenade, this grenade went on to be unsuccessful at the battle of Loos, where wet conditions rendered it useless. Replaced by the Mills bomb in the early 1900's.
Deck- The ground or aerodome
Donkey Walloper- British cavalryman, particularly members of the Household Cavalry. The expression originated fromBritish Foot Guard regiments, who were longtime rivals of the Household Cavalry men.
Double Top- good shot
Erks- Rank of airman, if they are lower than corporal
Fag- Cigarette
Flying Pig- 9.45" British trench bomb
Foot-Slogger- A British infantryman. Term originally used by cavalrymen, and means "marching"
Forced Lob- A forced landing
Gaspirator- a British filtered gas mask.
Greyback- British military uniform shirt, with metal buttons. Named for the color. .
Grappling Hooks- to make a huge effort
Grease Monkey- a mechanic
Hard Tack- British army rations, sometimes used to start fires
Jakes- Bathrooms
Jim Crow- an airplane on a recovery mission.
Kitch- Australian slang for a New Army British soldier
Knut- Officer who was very concerned with his appearance
Mate- Friend, pal
Mutton Lancers- Royal West Surrey Regiment from the badge on their cap which depicts a lamb with a lance.
Nabble- To catch up
Number Nine- To be sick
Peelow- a Piolet
Pineapple- Mills bomb
Plummy- Slow, dull
Poking Charlie- To make fun of someone
Pozzy- British army ration. Jam.
Press Gang- The Royal Engineers
Putting on the Horses- using more throttle to increase speed.