[Adminisphere] The rarified organizational layers above the rank and file that […]

[AFAIC] "as far as I'm concerned", or "as far as I […]

[AFAICS] "as far as I can see"

[AFAICT] "as far as I can tell"

[AFAIK] "as far as I know"

[AFAIR] "as far as I recall", or "as far as I […]

[AFC, AFK] "away from computer/keyboard"

[AICMFP] "And I claim my five pounds"

[AIM] "AOL Instant Messenger" Usage: * /Talk to me on AIM/.

[air one's dirty linen/laundry] {v.} To discuss private matters in public.