If you really want to read this, try using The Internet Archive.
http://www.washingtonpost.com/news/the-intersect/wp/2014/06/17/the-fbi-maintains-an-83-page-glossary-of-internet-slang-and-it-is-hilariously-frighteningly-out-of-touch/
DiS: BOGSAT > DITYID > BTWITIAILWY > BTDTGTTSAWIO > IAWTCSM, etc. etc.