On bulletin boards and discussion forums you'll see a lot of abbreviations and acronyms. Here's a short list of the most commonly used ones.
Some of the acronyms used in forums are practically impossible to decipher without a decoder ring, so we've put together a short list of the most commonly used ones. This is by no means a complete list, as new ones are 'born' almost daily, but this list should serve to help you get started.
BIC = Best Interests of the Child BIL = Brother In Law BF = Biological Father BM = Biological Mother BRB = Be Right Back (used in chat) BTDT = Been There, Done That BTW = By The Way CASA = Court Appointed Special Advocate CO = Court Order COC = Change Of Custody CP = Custodial Parent CPS = Child Protective Services CS = Child Support CSE = Child Support Enforcement DCS = Department of Child Support DCW = Dept. of Child Welfare DH = Divorced Husband or Darling Husband DW = Divorced Wife or Dear Wife ED = Egg Donor (an uninvolved mother) EOM = End Of Message FOC = Friend Of The Court FERPA = Family Educational Rights & Privacy Act FIL = Father In Law FOR = Father Of Record FOS = Full Of Sh*t (g) = (grin) GAL = Guardian Ad Litem GFG = Gift From God (refers to a child OR a 'stuck-up' ex) GP = Grand Parents HOH = Head Of Household FOC = Friend Of the Court FIL = Father In Law FWIW = For What It's Worth IMHO = In My Humble Opinion LFH = Lawyer From Hell MIL = Mother In Law MSA = Marital Settlement Agreement MSOL = Marital Standard Of Living NCP = Non Custodial Parent NM = No Message NT = No Text (same as NM) OM = Other Man OW = Other Woman OSE = Office of Support Enforcement OSD/OSS = Oldest Step Daughter/Oldest Step Son PAS = Parental Alienation Syndrome PBFH = Psycho Bitch/Bastard From Hell PF = Paternity Fraud PFV = Paternity Fraud Victim PKPA = Parental Kidnapping Prevention Act QDRO = Qualified Domestic Relations Order RO = Restraining Order ROG = short for 'Interrogatories' SAHM = Stay At Home Mom SC = Step Child or Children SF = Step Father SM = Step Mother SD = Step Daughter SD = Sperm Donor (an uninvolved father) SIL = Sister In Law SKIDS = Step Kids SS = Step Son STBX = Soon To Be Ex SO = Significant Other SIL = Sister In Law TRO = Temporary Restraining Order UIFSA = Uniform Interstate Family Support Act UCCJA = Uniform Child Custody Jurisdiction Act