BotB is an old website with an old community and a lot of history. Therefore it's not surprising that there is a terminology used sometimes, which might sound strange or weird to someone who's new to the site.
Don't worry, that's why the lyceum exists (together with some other reasons).
If there's something you don't understand and you're too shy to ask someone in IRC, you can just read the related article. Every available article is linked via the Lyceum Categories below. Have fun exploring the BotB History!