Almost anything with a "D" is family -
DH Dear (or Darling) Husband
DD - daughter
DGD - granddaughter
DS - son
DGS - grandson
MIL - mother in law
SIL - sister in law
FIL - father in law
BIL - brother in law
FQ = Fat Quarter (fabric cut approx. 18" X 22")
HST = Half-Square Triangle
QST = Quarter-Square Triangle
ROFL - Rolling On Floor Laughing
ROFLBO - Rolling On Floor Laughing my B*tt Off
ROFLAO - Rolling On Floor Laughing my A$$ Off
LOL - Laughing Out Loud
And in the live chat room - brb = be right back
Hmmmm, can't think of anything else just now, hope these help! :D