Meaning? There is no meaning here. We don't got no stinking meaning! We're just plain mean! Such acronyms are a "means" of making newcomers feel stupid and confused, all wrapped in the guise of expedience, of course. It feeds the innate snobbery of the flying elite, who, after all, ARE above it all at 35,000 feet. Acronyms are our friend, they'll say. Think of the countless hours that would be wasted typing out "first class," rather than "FC," "Continental" instead of "CO," or the horrific "Transatlantic" for "TATL"! Why the fate of the Free World would be jeopardized if we allowed inefficient words to take the place of arcane, asinine and cryptic acronyms! So why don't you MYOB.

RNE, still stupid and confused after 15 months here!