Some or many of htese may be repeats but there are also many new ones listed
ADDY address
AFAIC as far as I'm concerned
AFK away from keyboard
ATB all the best
ATM at the moment
B4 before
B4N bye for now
BAK back at keyboard
BBFN bye bye for now
BBL be back later
BC because
BD big deal
BF boyfriend
BIL brother-in-law
BION believe it or not
BOL best of luck
BRB be right back
BTW by the way
CMIIW correct me if I'm wrong
CU see you
CUL8R see you later or catch you later
DH dear husband
DHYB don't hold your breath
DK don't know
EOM end of message
F2F face to face
FIL father-in-law
FOAF friend of a friend
FTR for the record
FWIW for what it's worth
FYI for your information
G2G got to go
GA go ahead
GF girlfriend
GIWIST gee, I wish I said that
GL good luck
GMTA great minds think alike
GR&D or GRAD grinning, running and ducking
HAK hugs and kisses
HHOK ha, ha, only kidding
HTH hope this helps
IAC in any case
IAE in any event
IAO I am outtahere
IBCNU I'll be seeing you
ICBINB I Can't Believe It's Not Butter
IC I see
IDK I don't know
IDTS I don't think so
IIWM if it were me
ILU I love you
IMO in my opinion
IOW in other words
ISP internet service provider
IWIK I wish I knew
JFF just for fun
JAM just a minute
JK just kidding
KISS keep it simple stupid
L8R or L8TR later
LD long distance
LJBF let's just be friends
LOL laughing out loud
MB or MaB maybe
MIL mother-in-law
ML more later
MTFBWY may the force be with you
NM never mind
NBD no big deal
NRN no reply necessary
NP no problem
NTTRN no time to reply now
OAURS on an unrelated subject
OBTW oh, by the way
OIC oh, I see
OMIK open mouth, insert keyboard
IMG oh my gosh
OMW on my way
OT other topic
OTOH on the other hand
PCB please call back
PLS please
POV point of view
RAOK random act of kindness
RBTL read between the lines
RE regarding
RML read my lips
ROFL rolling on floor laughing
ROTM right on the money
SITD still in the dark
SO significant other
SIL sister-in-law
SIT stay in touch
ST super tired
TFN thanks for nothing
TIA thanks in advance
TNX or TNKS thanks
TIC tongue in cheek
TOM time of the month
TTFN ta ta, for now
TTYL talk to you later
WB welcome back
WO without
X kiss
YGBK you gotta be kidding
YT yours truly
ZZZ sleeping