A list of abbreviations & acronyms commonly seen at BYC:

ACV = Apple cider vinegar
AG = American Game
AGB = American Game Bantam
AGF = American Game Fowl
AMER = Ameraucana
ANDY = Blue Andalusian
APA = American Poultry Association
AS = Appenzeller Spitzhauben
ASOP = American Standard of Perfection
B.O.B = Best of Breed (not the rap singer)
B/L = Blue Laced
B/L/R = Blue Laced Red
B/S = Blue/Splash
BA = Black Australorp/Blue Andalusian
BB = Buff Brahma
BBR = Black/Blue Brested Red
BBS = Blue/Black/Splash breedings
BBSO= Black/Blue/Splash Orpington
BCM = Black Copper Marans
BF = Boyfriend/Bantam Fowl
BIL= Brother in Law
BIN = Buy It Now
BJG= Black Jersey Giant
BJO = Blue Jubilee Orpington
BL = Brown Leghorn
BLK = Black
BLRW = Blue Laced Red Wyandotte
BLW = Buff Laced Wyandotte
BM = Black Minorca
BMF = Blue Mille Fleur
BO = Buff Orpington
BOSS = Black Oil Sunflower Seed
BPR = Barred Plymouth Rock
BPW = Brown Porcelain Wyandotte
BQ = Breeder quality
BR = Barred/Blue/Black Rock
BR = Blue Red/Brown Red
BRC = Black Rose Comb
BRO = Brown Red Orpington
BS = Black Star (hybrid named by hatcheries, bird is a Black Sex Link)
BS = Brown/Buff Sussex
BSDW = Blue Silver Duckwing
BSW = Blue Silver Wyandotte
BSL = Black Sex Link
BTB = Black Tailed Buff
BTW = By the Way

BTW = Black Tailed White
BW = Blue Wheaten

BU = Buff
BV = Best of Variety
BYC = Back Yard Chickens (The website)
CBOF = Cantankerous Bag of Feathers
CC= Cushion Comb
CL = Cream Legbar
CL= Craig's List
CM = Cuckoo Marans
CMO = Chocolate Mottled Orpington
CO = Chocolate/Cuckoo Orpington
CPR = Columbian Plymouth Rock
CPW = Chcolate Partridge Wyandotte
CQ = Cinnamon Queen
CR = Columbian Rock
CS = Coronation Sussex
CSLW = Chocolate Silver Laced Wyandotte
CRD = Chronic Respiratory Disease
CW = Columbian Wyandotte
CX = Cornish Cross
DB = Dark Brahma
DB = Dear Brother
DC = Dark Cornish
DC = Dear Children
DD = Dear Daughter, Dear Dad
DE = Diatomaceous Earth
DF = Dear Father
DH = Dear (most times) Husband
DM = Dear Mom
DL = Down Low
DLM = Deep litter method
DM = Dear Mother, Dear Mom

DW = Dear Wife
DP = Dual Purpose
DS = Dear Son
DSD = Dear Step Daughter
DSF = Dear Step Father
DSM = Dear Step Mother
DSS = Dear Step Son
DW = Dear Wife
EE = Easter Egger
EE = Easter Eggers
EO= English Orpington
EO = Euskal Oilia
ETA = Edited to add
FAV = Faverolles
FBCM = French Black Copper Marans
FF = Fermented Feed
FIL = Father in Law
FL = Feather Legged
FOC = Free of Charge
FS = For sale
FTGH = Free to Good Home
FWIW = For What It’s Worth
FYI = For your information
GC = Golden Campine
GCM = Golden Cuckoo Marans
GF = Girl Friend
GB = Golden Birchen
GC = Golden Comet
GDW = Golden Duck Wing
GL = Golden Laced
GLBW = Gold Laced Blue Wyandotte
GLC = Gold Laced Cochin
GLO= Golden Laced Orpington
GLW = Golden Laced Wyandotte
GMO = Genetically Modified Organism
GP = Great Pyrenees (a breed of dog bred to guard livestock)
GPH = Gold Penciled Hamburg
GS = Gold Star
GSL = Gold Sex Link
H = Heritage Breed ie=HRIR (Heritage Road Island Red)
HB = Heavy Breed
HQ Hatchery Quality
IB = Infectious Bronchitis
IB = Iowa Blue
IIRC = If I Remember Correctly
ILT = Infectious Laryngotracheitis
IME = In My Experience
IMHO = In my honest/humble opinion
IMO = In my opinion
ISA = ISA Browns
JB = Japanese Bantam
JG = Jersey Giant
JO = Jubilee Orpington
LB = Light Brahma
LF = Large Fowl
LFS = Local Feed Store
LG = Little Giant Incubator
LGD = Livestock Guardian Dog
LOL = Laugh Out Loud
LS = Light Sussex
MFD = Mille Fleur D'Uccle
MH = Mottled Houdan
MIL = Mother in Law
MO = Mottled Orpington
MPC = My Pet Chicken
NCD = Newcastle Disease
NH = New Hampshire
NHR = New Hampshire Red
NVM/NM = Nermind
NN = Naked Neck Turken
NSQ = Non Show Quality
ODB = Old Dutch Bantam
OE = Olive Egger
OEG = Old English Game (usually standards)
OEGB = Old English Game bantam
OP = Original poster
OS = Older sister
OT = Old Timer
P = Partridge
PA = Paint
PC= Pea Comb
PM = Private Message
POL = Point Of Lay
POR = Porcelain
POW = Pic of the Week
PP = Pita Pinta
PPM = Platinum Poultry Membership
PPR = Partridge Plymouth Rock
PQ = Pet Quality
PR = Pair
PR = Production Red
PS = Post Script
PW = Partridge Wyandotte
RB = Reserve Breed
RC = Rose Comb
RIR = Rhode Island Red
RIW = Rhode Island White
RO = Russian Orloff
Roo = Rooster
RS = Red Star (hybrid named by hatcheries, bird is a Red Sex Link)
RSL = Red Sex Link
RV = Reserve Variety
SB = Sicillian Buttercup
SC = Single Comb
SF = Salmon Faverolles
SFC = Swedish Flower Chicken
SFH = Swedish Flower Hen
SIL = Sister in Law
SL = Silver Laced/ Silver Leghorn
SLW = Silver Laced Wyandotte
SMH = Shake My Head
SO = Significant Other
SOP = Standard of Perfection (in relation to judging birds against the particular breeds standard of what a perfect representation of the breed would be.)
SP? = Spelling Right?
SPPR = Silver Pencilled Partridge Rock
SQ = Show Quality
SS = Speckled Sussex
SSH = Silver Spangled Hamburg
SSS = Shoot, Shovel, and Shut up!
SW = Splash Wyandotte
TLDR = Too long, didn't read
TSC = Tractor Supply Co
TY = Thank You
UP-ACV = Unpasturized Apple Cider Vinegar
W = White
WB = Welcome Back
WCBP = White Crested Black Polish
WCP = White Crested Polish
WF = Water Fowl
WFBS = White Faced Black Spanish
WL = White leghorn
WO = White Orpington
WR = White Rock
WTB = Want To Buy
WTH = What the heck
WWYD = What would you do
X-BATT = Rescued Battery Hen
YMMV = Your Mileage May Vary



Forum thread for ideas, suggestions, additions, etc.
Click here for a Glossary of Definitions of Common Terms for Raising Backyard Chickens