Lets get a list of all acronyms that way when we use things like STFU = (shut the f up) or GTFO (get the f out) people know what were talking about. would make a good stickie too.
feel free to add as many as you want.
IDK MY BFF JILL lol
IBTL - in before the lock
Teh - the
IMO - in my opinion
ROFLCOPTER - no comment
TTT = same as bump
suxorz = sucks
I never knew what the FTW and FTL meant… I thought they were “Fuk The World" and "Fuk The Law”
Pwned - owned, as in has been had by somebody else
IIRC - If I Recall Correctly.
n00b - A new person.
2WS - two wheel steering
4WS - four wheel steering
A
AC - air conditioning (referring to the compressor and its piping)
AFAIK - as far as i know
B
rs
BFH - big fucking hammer. usually the last-resort method of car repair.
BOV - blow off valve
BS - bullshit
BTDC - before top dead center (usually preceded by a degree value)
BTW - by the way
BUMP - bring up my post
C
CAI - cold air intake, intake that goes all the way down into the fender
CC - cruise control
CEL - check engine light, it flashes codes telling you whats wrong with the motor
CF - carbon fiber
CPU - computer (“central processing unit”)
CTR - civic type-R
D
DIY - do-it-yourself, usually referring to a step by step guide
DOHC - dual overhead cams
DP - downpipe, lower half of the header on the front of the motor
DRL - daytime running lights
DSM - diamond star motors, a Mitsubishi/Chrysler hybrid company. DSM usually refers to the Talon/Eclipse/Laser and crankwalk.
DTC - diagnostic trouble code (another name for a CEL code)
E
ECU - engine control unit, the engine computer
ECM - another name for an ECU, engine control module
EDM - european domestic market, referring to car parts from europe
EQ - equalizer (audio system related)
EGR - exhaust gas recirculation, an emissions valve on the motor
ES - Energy Suspension (brand name)
F
FAQ - frequently asked question
FI - forced induction (boosted)… less commonly used, Fuel Injected
FIV - fast idle valve
FITV - Fast Idle Thermo Valve
FMIC - front mount intercooler
FPR - Fuel Pressure Regulator
FS - for sale
FTW - for the win!
FWD - front wheel drive
FWIW - For What its Worth
FYI - for your information
G
GTFO - get the fuck out
H
HG - head gasket
HID - high intensity discharge (high output lighting system)
HT - honda-tech.com (sometimes used for Honda Tuning magazine)
HU - headunit (cd player)
I
IAB - intake air bypass, “secondary intake runners”
IACV - idle air control valve
IAT - intake air temperature sensor
IBTL - in before the lock (posting before a thread gets locked)
ICE - in-car entertainment
IDK - i dont know
IHE - intake/header/exhaust… most common mods people do first
IIRC - if i recall correctly
IM - intake manifold (also may mean Instant Message, referring to AOL)
IMO - in my opinion
IMHO - in my honest(humble) opinion
ITB’s - Individual Throttle Bodies
ITR - integra type-R
J
JDM - japanese domestic market, referring to car parts from japan
JK - just kidding
L
LCA - Lower Control Arm
LED - Light Emitting Diode. a solid state diode that emits light, its not an incandescent bulb, and cp[mike]'s interior obsession/trademark.
LHD - left hand drive
LMAO-laughing my ass off
LMK - let me know
LOL - laughing out loud
LSD - limited slip differential
M
MAP - manifold absolute pressure, a sensor on the intake manifold
MPG - Miles per Gallon
MPH - Miles per hour
MRT - members ride thread
MRX - midniteracerx (a member here)
MT - manual transmission
N
NA - naturally aspirated, meaning not boosted
NSFW - not safe for work
NWS - not work safe
O
OBD# - onboard diagnostics, it tells you whats wrong by giving you CEL codes.
OEM - original equipment manufacturer
OG - original gangster, referring to the old-school dudes
OMG - oh my god
OT - off topic
P
PFM - power folding mirrors, a JDM part available for many cars
PGMFI - programmed fuel injection
PITA - pain in the ass
PM - private message, can be sent thru the site (see top right corner)
PS - power steering
PCV (valve) - Positive crankcase ventilation valve (top of v.c)
R
RHD - right hand drive
ROFL - rolling on the floor laughing
RT - reaction time (in a drag race), can also mean rims+tires
RTFM - read the fucking manual
RWD - rear wheel drive
S
S2K - Honda S2000
SAFC - super air flow controller (piggyback controller for non-vtec engines)
SN - screenname (usually referring to an AOL name)
SMIC - side mount intercooler
SOHC - single overhead cam
SOL - shit out of luck
SPL - sound pressure level
SRI - short ram intake, a smooth pipe with a round cone filter at the end
STFU - shut the fuck up
T
TB - throttle body
TBH - to be honest
TCU - transmission control unit, the tranny computer
TCM - another name for a TCU, tranny control module
TDC - top dead center, when a piston is at the very top of its stroke
TIA - thanks in advance!
TPS - throttle position sensor, on the back of the throttle body
TTT - To the top
TW - testing waters (if somebodys not sure if they want to sell yet)
U
USDM - US domestic market (regular parts we can get here)
UCA - Upper Control arm
V
VAFC - VTEC air flow controller (piggyback controller for VTEC engines)
VC - valve cover
VTEC - Variable valve Timing and lift Electronic Control, on some motors, most commonly the H22
W
WB - wideband oxygen sensor
WG - wastegate
WOT - wide open throttle (pedal to the floor, throttle body open all the way)
WTB - wanted to buy
WTF - what the fuck?
WTS - want to sell
WTT - Want to trade
Y
YGPM - youve got a private message
A for effort, but a lot of that stuff is not necesary here, and a lot of it is just not used by us, ill edit it later
Dude, you have way too much time on your hands.
Naw, I just “borrowed” it from another source
No fair you cheated. 
cheaters always win!
W I N N E R = One who wins at an event
Matt, I suggest quoting sources if you’re just gonna copy/paste. You must give credit where it’s due.