oic = Oh I see! / I understand - could you please give me more samples?
[ I mean I want some abbreviations like that : the sound of the phrase and alphabet are the same ] sorry if not clear, I will come back to explain more about my question]

Question

oic = Oh I see! / I understand   - could you please give me more samples? 
[ I mean I want some abbreviations like that : the sound of the phrase and alphabet are the same  ] sorry if not clear, I will come back to explain more about my question]

Answer

Hi Snow.

Here are 2 websites that have thousands of terms. There are many more sites like them:

http://www.netlingo.com/

http://www.internetslang.com

You can search for "internet shorthand" or "internet slang" to find more.

Answer

btw = by the way
ttfn  = ta ta for now = see you later
OMG = oh my god!