I'm sure you all know this, but I like the fabled entry from a member of staff for the NA-39 project naming competion - Arna. "Arna" said the Management, "Sounds good, wot's it mean?" "A Royal Navy Aeroplane" came the reply. They saw the joke after saying it after Blackburn. So it became the Buccaneer instead...
Couple more really silly ones, thinking of the old Tiger Club hangar at Redhillin 70s/80s:
Currie Favour
Cassutt Recorder
and...
Rollason Other