b/c = Because
BG = Background (when someone refers to their Twitter background page)
BFN = Bye for now
BR = Best regards
BTW = By the way
DM = Direct message
EM = Email
FB = Facebook
FTF = Face to face
FWIW = For what it’s worth
Gr8 = Great
IMO = In my opinion
IMHO = In my honest opinion or in my humble opinion
IRL = In real life
J/K = Just kidding
LI = LinkedIn
LMK = Let me know
LMBO = Laughing my butt off
LMAO = Laughing my ass off
LOL = Laughing out loud
NP = No problem
OMG = Oh my God
OMFG = Oh my f—- God
PLZ = Please
ROFL = Rolling on the floor laughing
RT = Retweet
RTHX = Thanks for the retweet
TMB = Tweet me back
TMI = Too much information
TTYS = Talk to you soon
TTYL = Talk to you later
TY = Thank you
WTH = What the heck
WTF = What the f—
YW = You’re welcome
<3 = This is the text version of a heart