Not sure if this has been posted yet but here goes..
Online Gaming Slang
In multiplayer games, every second counts. Messaging shorthand is a critical tool for communicating with other players during gameplay. Below is a list of slang terms used in online gaming that will help you communicate faster and, most importantly, avoid being a n00b.
You can also view specific terminology used in World of Warcraft, League of Legends, Hearthstone, Dota 2, StarCraft II, Call of Duty, and Minecraft.
Slang Term
Meaning
Popularity
555
Laughing
AFK
Away from keyboard
ATM
At the moment
BBIAB
Be back in a bit
BBL
Be back later
Beast mode
Dominating gameplay
bio
Bathroom
BM
Bad manner
BSTS
Better safe than sorry
d/c
Disconnected
d/l
Download
D3
Diablo 3
dl
Download
dmg
Damage
Fail
Failure
FPS
First-person shooter
FTW
For the win
FUBAR
Fouled up beyond all recognition
G2G
Gotta go
Gamer
A video game player
GG
Good game
GJ
Good job
GL
Good luck
GLHF
Good luck have fun
GM
Good match
gnite
Goodnight
Gosu
Highly skilled
GTA
Grand Theft Auto
GTG
Good to go
HF
Have fun
IAP
In-app purchase
IDK
I don't know
IRL
In real life
Keke
Korean laugh
KK
OK
l8r
Later
LAN
Local Area Network
LARP
Live action role-playing
LMSO
Laughing my socks off
LOL
Laughing out loud
ltr
Later
MMO
Massively multiplayer online
MMOG
Massively Multiplayer Online Game
MMORPG
Massively multiplayer online role-playing game
mod
Modification
n00b
A new or inexperienced user
N64
Nintendo 64
NC
Nice call
NDS
Nintendo DS
NES
Nintendo Entertainment System
Noob
Newbie
NP
No problem
nxt
Next
OIC
Oh, I see
OMG
Oh my gosh
OOC
Out of character
op
Overpowered
OTP
On the phone
PC
Personal computer
PK
Player kill
POW
Prisoner of war
PS2
PlayStation 2
PS3
PlayStation 3
PSP
PlayStation Portable
pwn
To dominate
pwn3d
Owned
pwnd
Owned
Raid
Raid group
rdy
Ready
RNG
Random number generator
ROM
Emulator game
RPG
Role-playing game
RTFM
Read the flippin' manual
RTS
Real-time strategy
sec
Second
SNES
Super Nintendo Entertainment System
SOS
Save our souls
SWTOR
Star Wars: The Old Republic
TISNF
That is so not fair
Trolling
Posting offensive comments
TTYL
Talk to you later
Twitch
Video game streaming website
TY
Thank you
TYVM
Thank you very much
Uber
The best
ugh
Disgusted
ul
Upload
vs
Versus
W8
Wait
WAM
Wait a minute
WAS
Wait a second
WB
Welcome back
Whoa
Expression of surprise
WoW
World of Warcraft
WP
Well played
WTF
What the f***
Y
Why
YT
Your turn
YW
You're welcome
ZOMG
Oh my gosh!