WYSIWYG 
Acronym for: What You See Is What You Get

The vBulletin WYSIWYG editor is one that allows a user that creates a new post to see what the end result will look like while the post is being created. This is in contrast to editing a post in the vBulletin standard editor which requires you to understand BB Code tags like [b] for bold and [u] for underline.
User Contributed Notes: WYSIWYG Add a Comment