Like mopar said, it will be on the screen where it shows all of the different forum rooms. If you go down to the section called the "Lounge", the "No Holds Barred" section will be right under the "Everything Else" room.
Its not like going into this room is going to be like hitting the lottery or anything, but it is defiantly a nice place to go into and snoop around. There are a lot of laughs, hot pictures and things that are not talked about in the open part of the forum.