Eternal flame - A Police officer that constantly avoids doing operational work "on the ground" and manages to obtain station/HQ only based work. A strong suspicion of cowardice or at least laziness is implied, as in " Inspector Jones is a f**king eternal flame" (He never goes out)
"Station Cat" has the same meaning.
Brain on a chain - a Police dog, from the supposed division of intellectual capacity between a dog handler and the dog itself. Insulting to dog handlers obviously.
Two Shits- similar to Elevenarife. Someone who has always gone one better than you. If you have been for a shit, he has been for two shits.
Black Rat- a Traffic Police Officer, not to be confused with " Big black dog" a mythical creature which is always the cause of any Police related collision, as in "Well here's what happened Skipper, I was driving along at 25 and a big black dog ran out in front of me, and I had to swerve to avoid it"
A Nu Nu- a police term for a person with mental difficulties, especially someone who is mentally unstable. Derived from the sound of the siren on the ambulance you hope is about to arrive to take them to a special ward somewhere. As in " Constable Smyth, there is a Miss Jones in the inquiry office for you" " Oh f**k, not her again. Tell her I am not in Skipper, she is a f**king Nu Nu"
A Window Licker- similar to a Nu Nu, but usually less offensive and implies ill, but harmless. Derived from what a Nu Nu will do when they are in an ambulance, on a bus etc.
A Brussel - an informant. Rhyming slang, Brussel Sprout- tout. As in "That kid (kids are great for Police, they know lots and tell you everything) never shuts up when I chat to him, I think he is going to be my brussel"
A Ghurka- similar to a station cat, but a ghurka has not avoided operational police work completely, so instead just refuses to do anything when he is out there. This is specific to those who avoid such work due to their small stature and consequent fear of injury. Comes from the reputation Ghurkas have, namely they are small and take no prisoners. Not to be confused with "Ghurka's foreskin", describing a very stupid person, as in " He is as thick as a Ghurka's foreskin"