241 or 2for1 - Voucher received from BA when set level of expenditure on BA American Express card is reached. This gives a free ticket when purchasing one full miles redemption ticket.
AVOD Audio Video On Demand - An updated IFE system allowing users to watch TV programs/movies etc when they want with the option to pause, rewind, stop etc as needed.
B/H - Bulkhead Seat (At the front of each cabin, often providing extra legroom. However, BEWARE bulkhead often = bassinet = babies screaming )
BA - British Airways
BA AmEx PP - British Airways American Express Premium Plus Card (or without PP to represent BA AmEx standard card)
BACON - BA Connect – the now deceased BA regional domestic service
BAEC or EC - British Airways Executive Club
BMED - Used to be a franchisee of BA operating flights to Africa, Middle East & Central Asia with tickets booked through ba.com – now owned by bmi, but still operating with BA codeshares attached for now
CC - In context of Tesco, refers to Clubcard
CCR - Concorde Room - for pax ticketed in First ex-LHR T4, T5 and JFK T7 only (or the invited few who hold a special Concorde Room pass, first issued on 2003 after the retirement of Concorde, now said to be issued to the very highest frequency Club Europe passengers)
CE - Club Europe (European Business Class)
CPN - Coupon - Refers to Paper Tickets (becoming more and more unusual)
CR – Concorde Room (see CCR above, this abbreviation is also used sometimes)
CSD - Cabin Services Director (Most senior member of cabin crew)
CSDM - Customer Service Duty Manager (Most senior member of airport ground staff)
CW - Club World (L/H Business Class)
DO - officially a gathering of 12 or more at an event intended for FlyerTalkers. In reality, a gathering of any number of people involving large amounts of alcohol!
Click here for a list of all upcoming Dos.
Dummy Booking – the act of pricing up a booking on ba.com right up to payment, but not actually paying (e.g. to check a price, check miles availability, etc.)
Dusking - not an acronym/abbreviation, but often seen on the board - refers to the process of a plane going from OCW to NCW, and also adding WT+ to L/H aircraft.
DYKWIA - Do You Know Who I Am? - Often heard by Gold BAEC members after being refused an upgrade. (Also Rick's handle!)
ECCA - Executive Club Corporate Agreement – a legacy scheme which BA ran for major corporate clients, with reduced thresholds for qualifying for Gold, Silver, etc. and various other benefits. Removed from use in July 2003, but still referred to on FT occasionally.
EF - www.expertflyer.com - useful website which shows flight & seating availability for all carriers (incl. BA). Subscription is $4.99per month, which can be cancelled at any time.
ex-EUR - refers to starting a journey from an out-station in Europe which often results in a significant discount in fare. Click here for more info
Fare Classes - Not an acronym, but click here for details
FBD - Fast Bag Drop (to be used at the airport after using SSCI or OLCI)
FFP - Frequent Flyer Program (e.g. BAEC)
FSB - Friends & Supporters of BA (new way of scoring BAEC members - only listed on the CSD's manifest) - this one's a fun fake, that some completely fell for!!
GB - GB Airways (former franchisee of BA operating flights to destinations around the Med. GB was sold to Easyjet in 2007, and ceased to operate routes for BA in March 2008)
GEx - Gatwick Express (Fast train between LGW and London Victoria)
GGL – Gold Guest List (for the top TP earning Golds)
GUF2 - Gold Upgrade for 2 voucher - voucher given to Gold members upon reaching 2500 TPs and again at 3500 TPs.
HHA - Household Account
HEx - Heathrow Express (Fast train between LHR and London Paddington)
H.I. - Him/Her Indoors (Not a BA acronym but a very common FT one and deserves a place on this list)
Hi-J – BA’s 747-400 configured with 70 Club World seats
IFE - In-flight entertainment
ISTR - I seem to recall/remember (not BA, but useful)
KUP – Type of American Airlines fare (pronounced K-Up) that books into cheap First class, but gets full allowance of BAEC F TPs
L/H or LH – Not Lufthansa, but Longhaul
Low-J – BA’s 747-400 configured with 38 Club World seats (a configuration which is no longer in use)
MCO - Miscellaneous Charge Order (a form of credit note given to passengers from BA
MCT – Minimum connection time – the minimum time between two flights connecting via an airport – between the scheduled arrival time of flight A and the scheduled departure time of flight B. Differs from airport to airport (and between terminals at a single airport), reflecting relative complexities of connecting
MFU - Miles for Upgrade (Method of redemption using cash + miles to upgrade)
MHC - Mile High Club (Ahem )
MIC - BA missed interline connection
Mid-J – BA’s 747-400 configured with 52 Club World seats
MMB - Manage My Booking (Tool for seeing details about your booking)
MVCC - Most Valued Corporate Client
NCW - New Club World (New style of Business Class - flat beds)
NGCW - Next Generation Club World (New style of Business Class replacing NCW)
NOCW - New Old Club World - Only found on BMED, this is a new style of BA's OCW Cradle seat.
NSFU - Not Suitable for Upgrade
OCW - Old Club World (Old ‘cradle’ style seats – no longer in use)
OLCI - Online Check-In
Op-Up - Operational Upgrade (free upgrade given for no specific reason)
OW or 1W - oneworld (American Airlines, BA, Cathay Pacific, Finnair, Iberia, LAN, Malev, Qantas, Royal Jordanian)
PCPM - Part Cash Part Miles (Another method of redemption using cash + miles. Generally considered a poor use of miles)
PFUG - Pre-Flight Upgrade
PNR - Passenger Name Record - also known as the BA Booking Reference
PUTI - Posting Under the Influence - VERY common on this board
PYOBP - Print your own Boarding Pass
RDUG - Redemption Upgrade
RTW - Round the World ticket
S/H - Shorthaul
SAU - Space Available Upgrade
SEx or StEx - Stansted Express (Fast train between STN and London Liverpool St.)
SFU - Suitable for Upgrade
SM or SPML - Special Meal (e.g. Vegetarian, Kosher etc)
SS or S/S - Special Services (BA Staff as the airport usually in suits, to help VIP or Premier passengers with anything they need)
SSCI - Self Service Check-In
SSSS - Selected for Secondary Security Screening (printed on selected boarding passes usually ex-USA meaning you're going to be extra checked by security)
T1/T2/T3/T4/T5 - LHR (London Heathrow) Terminal
TATL – TrAnsaTLantic (as in a ‘TATL trip’)
TCP - To Complete Party - Used where you have two separate bookings on the same flight (e.g. you and spouse) and want to join the bookings up to ensure you sit together. Previously possible for all, now only available to Gold/Premier BAEC members or oneworld equivalents
TFTG - Tales from the Galley (kindly provided to us from Pucci, Purserette, Tits (see below) and a few other BA Lurkers. Click here for a great example)
Tits - Again not an acronym, but worth mentioning to avoid confusion... Tits is short for Tits McGhee who is one of our BA Cabin Crew Lurkers.
TP - Tier Points
WT - World Traveller (Economy)
WT+ or WTP - World Traveller Plus (Premium Economy)
WW - Willie Walsh (aka "The Boss"), BA’s current CEO.
YUP – What ‘KUP’ originally was!

And finally.... FT - FlyerTalk!!!

In addition, check out the official FT Glossary for general (non-BA specific) abbreviations, click here.