To help you crawl out from under that rock....
This is a list of common abbreviations used in forums. My google search for forum abbreviations brought up pregnancy and mom forums, not sure what that that is trying to tell me, but anyway, here is the list, https://www.netmums.com/info/abbrevi...-in-the-forums
If you can't find something on there, you can look it up here.... https://slangit.com/
or here https://www.urbandictionary.com/
Work of caution on the uban dictionary, it can get R rated and even X rated depending on what you are looking up. You would be surprised at the meaning of a couple of letters.