MILITARY SLANG
I checked this thread thinking it would be fun- both the Americans and the Brits contribute some good slang. Having left the military some time ago, I'm not au courant with current usage.
There's a difference between diplo/beaurato-speak, which I agree is infuriating- call a spade a shovel.
Nota bene : Since Boeing made the 727, perhaps it's understandable that they would use colonial english ; maybe you think 'clean (up) machine' should be expanded...
In any case, F.I.D.O.