BBCode (or Bulletin Board Code) is a simple markup language used on many forums and messaging boards.
It allows you, as well as your audience, to take your content and publish it to forums in a more attractively styled way.
For example, let's say you run a support forum. Having all your support content handy as BBCode allows you to quickly answer questions on your forum - simply copy and paste the relevant BBCode from your content's support section into the forum post.
There are two ways to convert a section of your content into BBCode;