Here, this is in the Supra FAQ section:
http://www.toyota-supra.info/forums/...on-forums.html
I'm sorry, but if there was suddenly a "no acronym/abbreviation" law I would quit my job and I would leave the forums too. There is no way I'm going to start writing out all of these terms in every single post when 90% of the readers have found the definitions and the other 10% could simply ask OR look for a dictionary of these terms.