Too much texting? Now how can that possibly happen?

And here's the complete lingo:

NWRUS= No way, are you serious?

MYOB= Mind your own business

IDK= I don't know

BFF= Best friend forever

NJOY= Enjoy

WU= What's up?

OMG= Oh my god

INABD= It's not a big deal

TISNF= This is so not fair!