look up any word, like guncle:
 
1.
1. an online forum member who is invisible as being active or online
2. an online forum member who posts very infrequently
1. userA: It doesn't show userB is online, but he just responded to my post.

userC: userB is a forum ghost. He may be here. He may not be.

2. userA: Where's userB and userD? They haven't responded for a week.

userC: They are forum ghosts. It may be a while before you get a response.
by rxm6 February 19, 2009
 
2.
comp freak d00d that appears to be l33t!!!!!!!!!!!!!!!!!!!!
Dude that guy acts like ForumGhost
He hacked me