DTMO can either mean:
Down To Make Out
- or -
Don't Tick Me Off
Internet.
YAF means in internet slang your a f*ck
The wildly popular internet slang 'GR8 ' stands for great
SOS or soz as it is more commonly used is the internet slang for sorry
If you mean slang as in internet slang, then it means "Certified Old Fart".
In internet slang it usually means "No strings attached."
AFK is slang already. It stands for Away From Keyboard.
The meaning of YTB is slang on the internet for You're the Best. There are a number of other common slang terms such as LOL (laugh out loud) and TTYL (talk to you later).
NTH stands for nothing in internet slang.
disconnected
Imbalanced... In internet slang...
it means *am*