Whatever it stands for, I expect it's quite rude, and not particularly flattering either!
Going back to an earlier point though, one thing that never seems to get mentioned, which I'd quite like to know, is what happens to RN fixed wing pilots who do fairly well by all accounts, get through Valley, but just don't quite come up to the standard required for SHAR (or GR9 - or whatever)?
I presume it's one of the following:
a) The door's that way - Thanks for coming. [Terrible waste!]
or;
b) Shawbury's the other way - Thanks for coming. [See above]
or;
c) New uniform (not as nice)
and, being as you're
sooo $#!t, you can
only drive Tornados now.
(Or Typhoons...
).
And who gets to choose?