Here is a list I have compiled from various sources over the years. Being a Wyndham owner several are Wyndham specific:
10-100
Have to go to bathroom
10-17
Have to get a cold beer/Margarita
AC
Accommodation Certificate - An extra week offered by II as an incentive for depositing a high-demand week or ??? Restricted usage
ARP
Allows owner at a Wyndham resort to book at 13 month mark while others have to wait until 10 month point
BBB Rating
Third party rating of businesses based on complaints .Wyndham has "F"!
BF
Boy friend
BR
Bedroom
Bribe
Payment to get one to a sales pitch
Broken week
Deposit with exchange company that goes unused or just partially used
CWA
Wyndham membership plan vs deeded ownership
DAE
Dial an Exchange - Independent Exchange company
Developer
Corporations like Wyndham and Westgate that put up $300K condo, divide into 52 Intervals, sell for $1,500,000 and collect life time management fee
DBW
Developer Bonus Week
DH
Dear/ Deceased/Darling/Dumb/Darn Husband
DIL
Daughter in law
DVC
Disney Vacation Club
DS
Dear/Deceased/Darling/Dumb/Darn/ Spouse or son
DW
Dear/Deceased/Darling/Dumb/Darn/ Wife
EH
Extra Holidays, WWW rental arm
EOY
"Every Other Year" - a timeshare you get to use every other year
EY
"Every Year" - a timeshare you get to use every year.
FIL
Father in Law
Fixed Week
One owns specific unit and week at specific resort. Great for popular events.
Floating Week
Owner requests a desired date from the timeshare resort every year subject to availability at the time of request.
FF
Fairfield Resorts, now Wyndham
Fractional ownership
Fancy name for owing several weeks at same resort
FK
"Full Kitchen"
FROR or ROFR
"First Right of Refusal". Used by some high demand/value resorts to control resale values.
FWIW
For What its Worth
GF
Girl friend
GBR
Guest Bedroom
GC
"Gold Crown". An RCI designation of their highest quality resort or Gift/Guest Certificate
GMTA
Great Minds Think Alike
GV
Garden View or Mountain View (or occasionally, a parking lot view)
HGVC
Hilton Grand Vacation Club
HHI
Hilton Head Island
HTD
Have to Disagree
HTH
Hope this Helps
Incentive
Nice word for bribe
II
"Interval International", an exchange company.
IMHO
In my Honest/Humble Opinion
IMO
In my Opinion
Interval
One timeshare week.
IOW
In Other Words
LOL
Lot's of luck or laughing out loud
JK or J/K
Just Kidding
JMHO
Just my Humble/Honest Opinion
KISS
Keep it Simple Stupid
LH
"Lease hold". Timeshare is deeded property on leased land.
LK
Limited kitchen
LMK
Let me Know
LTNS
Long Time No See
Lockout
If allowed, a timeshare unit can be subdivided and used as two smaller units for the purposes of use or exchange. e.g.: a three bedroom unit might be split and deposited as one 2BR unit and one BR unit giving the owner two weeks for use or exchange.
Lurker
Non participating visitor to BBS sites.
MF
Maintenance fee
MIL
Mother in Law
MOD
Person who keeps posters honest and Forum on track
MIR
Mail in Rebate
MROP
Multi Resort Ownership Plan
MVCI
Marriott Vacation Club International
Owner update
Euphemism for TS sales pitch generally without a meaningful bribe
NB
Nearby or newbie
NP
No Problem
OBO
"Or Best Offer".
OBX
Outer Banks of North Carolina
OF
Ocean Front
OMG
Oh My God/Gosh
OP
Original Poster (who started the thread)
OT
Off Topic
OTOH
On The Other Hand
OV
Ocean View
Parking Pass Tango
Body snatcher seducing you
Personal Rep
Salesperson who claims to be your personal TS genie
PHD
Piled higher and deeper
PM
Private Message
PCC
Post Card Company - company who sends postcards to unsuspecting buyers recommending they pay thousands of dollars to give their timeshare away.
POV
Point of View
Profeco
"Procuraduria Federal De Consumido" or Federal Bureau of Consumer interests in Mexico - an organization known to assist timeshare owners who have been scammed or ripped off by Mexican timeshares.
Rack rate
Non discounted hotel room rate. Like sticker in window or new cars
RCI
"Resorts Condominium International", an exchange company.
RHC
Royal Holiday Club
ROFR
Right of First Refusal
Right of Rescission
Time period immediately after sale in which the buyer can cancel the sale for full refund, generally 3-10 days.
RTU
"Right To Use". Timeshare "ownershi"p has an expiration date.
Seagull/Sea-gul
David Siegel who owns Westgate TSs and $100 million pad in Florida
Sales weasel
Most TS sales people
Scammer
Person who cold calls offering lots of money for your worthless TS
Shill
Person generally new to Forum who touts a scammer
Spammer
Trespasser offering to sell over priced junk to solve all of one's problems
SA
Special Assessment
SA Week
South African Timeshare
SFX
"San Francisco Exchange" , an exchange company.
SIL
Sister in Law
SO
Significant Other
Shell
TS subsidiary of WWW
SVO
Starwood Vacation Owner - Someone who knows a Starwood Timeshare
SVN
Starwood Vacation Network - the exchange system for Starwood owners
TPI
Trading Places International - an independent exchange company
TPU
Trading Power Unit - an arbitrary value assigned to Exchange Weeks within RCI
Trade Power
A measure of desirability of a timeshare week for use in exchanging. Based on location, time of year, unit size and resort quality.
TTYL
Talk to You Later
TUG
"Timeshare Users Group"
T/S
Timeshare or ownership interval.
Up front money
Hard earned dollars scammer rips you for promising to sell your TS for a fortune
VC
Vacation Counselor - a phone rep at one of the exchange companies
VEP score:
"Vacation Exchange Profile". An RCI resort rating score (company confidential).
VOI Trust
Legal entity set up to administer Club Wyndham Plus TSs
VOIP
Phone system allowing scammers to hide their location
Vacation club
Entities offering great vacations at unbelievable prices that generally do not deliver
Wastegate
Slang for Westgate
WB
Welcome Back
WK
Week
WTG
Way to Go
WKORV
Westin Ka'anapali Ocean Resort Villas
WM
WorldMark-subsidiary of WWW
WWW
Wyndham World Wide who owns Wyndham, WorldMark and Shell TSs and RCI, EH and other vacation, lodging and rental related companies
WVO
Wyndham Vacation Operation
YMMV
Your Mileage May Vary
YW
Your Welcome