Difficulty: Moderately Easy
Step1
Decipher the wedding message board acronyms that deal with family relationships. FMIL (future mother-in-law), FFIL (future father-in-law), FBIL (future brother-in-law), FSIL (future sister-in-law), FILs (future in-laws), MIL (mother-in-law), FIL (father-in-law), BIL (brother-in-law), SIL (sister-in-law), FI (fiancé, pronounced "fie"), DH (dear husband), DD (dear daughter), DS (dear son), DC (dear child), MOB (mother of the bride), FOB (father of the bride), MOG (mother of the groom), FOG (father of the groom) and GP (grandparent).
Step2
Understand the acronyms that have to do with the wedding party. BM (bridesmaid or best man, depending on context), GM (groomsman), FG (flower girl), RB (ring bearer), MOH (maid or matron of honor) and BP (bridal party).
Step3
Know some other acronyms that are wedding related. RD (rehearsal dinner), STD (save the date, as in a card mailed out letting potential guests know the upcoming date of a wedding in advance), NWR (not wedding related), WR (wedding related), SO (significant other), DW (destination wedding), DD (dollar dance), HM (honeymoon), AI (all-inclusive, as in a honeymoon hotel) and OOTG (out of town guests).