Internet slang

Internet slang is slang that Internet users have created and used, often in instant messaging and forum discussions. They are frequently acronyms, designed to save keystrokes in an attempt to speed up communication.

List of Internet slang

ROTFL: Rolling On The Floor Laughing

LOL: Laugh Out Loud

ATM: At The Moment

ASL: A request for Age, Sex, and Location.

BRB: Abbreviation for Be Right Back

IM: Abbreviation for Instant Messaging.

U: you

Ur: your, you're, you are

4: for, four

l8r: later

BBL: be back later

BBIAB: be back in a bit

GG: gotta go, got to go, good game

Pwn: Defeat someone in a video game, misspelling of "own"

IANAL: Sometimes IANALB, "I am not a lawyer (but)" said right before (usually) poor legal advice.

IIRC: If I remember correctly

WYSIWYG: What you see is what you get, also a word processing editor type.