Below is our growing glossary of terms used by frequent flyers and travelers alike. This list was inspired, in part, by a member of the FlyerTalk community who wrote to us about deciphering the comically absurd lingo of the frequent traveler. Here's a brief example of life in the fast lane:

"FWIW, I resent being called SLF, typically fly UA C from DEN to HKG, SYD, LHR, LIS and many others and have been UA 1P FF for the last 10 years. I never use ITN, have never done a MHD, don't really want to be a VFF because of family but am jealous of 1K SWUs and HK49s. I have flown only 6 *A partners and like UD on the 744. I frequently UG Y to F (many times from B, M & K), don't worry about EMR at altitude and find WSJ difficult in small-pitch rows. I have not yet memorized FARs, don't know anyone at the FAA and highly respect most FAs. I always try to see my PNR and always use the UA RCC when I have the time. I really like CTOs and use only two CCs. I am fascinated watching my TA use her CRS and am not concerned whether the left seat is on ILS or VFR. I prefer heavy AC and am not yet a member of the MHC (darn!). I am cool with F/O handling T/O and enjoy ATC on channel 9. I am grateful for E+ and MRTC and am pondering a RTW soon. I am finally getting used to EGRs but don't trust ETAs. I can find the record locator on any tix and don't care if it's FBW, FBY or hydraulic. I slightly fear DL's RPU. I miss MCOs issued for CC tix and always do RT, not O/W."