Lol- Laugh out loud
Lmao- Laughing my ass off
Wtf/wtaf- What the f**k
wth- What the hell
Gtg- Got to go
Brb- Be right back
2F4U- Too fast for you
Idk- I don't know
IIRC- If I remember correctcly
Imho- In my humble opinion
L8r- Later
Sry- Sorry
Bk- Back
Asap- As soon as possible
4YEO- For your eyes only
Aamof- As a matter of fact
Afaik- As far as I know
Aka- Also known as
Afk- Away from keyboard
Btk- Back to keyboard
Btt- Back to topic
Btw- By the way
CU/ Cya- See you
C&P- Copy and paste
Fyi- For your information
Faq- Frequently asked questions
Omg- Oh my God
Oml- Oh my lord
Omfg- Oh my f**king God
Ftw- F**k the world/ For the win
Noyb- None of your buisness
And many, many more that
1. I can't be arsed to type
2. Idk
Not gonna lie, had to google a few XD
