Newbies are people who are new to the forum or to RPG Maker. They are more likely to post for help until they get a foothold in what they are doing.
Please be nice to them. You were one, once.
Newbies should not be confused with n00bs, members who: speak like four year olds, don't understand grammar, ignore the search button, rules, and stickies.
It is worth nothing that n00bs are also the sworn enemy of Falcon.