Can remember one from the Falklands whilst on the Penelope. Every day we were issued meat pies at lunchtime at our action station and these soon became affectionaly known as BAMPS = Bomb Alley Meat Pies.
Mate of mine, a civvy consultant surgeon, (yep, I overachieved in life) was telling me some of the medical ones. One handy one for "weirdo alerting" other Docs: NFN. (Normal For Norfolk) The other, annotated on a troublesome patients' discharge notes: TTFO (Told to F*ck Off)
SLUT - Ship Launched Underwater Target
TART - Towed Acoustic Recoverable Transponder
Any pingers online? I might have these a bit wrong but I can still remember a pipe being made on board Minerva off Andros Island in 1975 to the effect that SLUT had been screwed by TART during an unplanned snarl up.
Qintetic or whatever it now is on the top of Portsdown Hill, which was ASWE for many years, was originally to be called the Admiralty Radar and Signals Establishment .. I believe someone saw the light before the nameboard was painted up.