One who can see through the facade of others' statuses, posts and comments on Facebook.
DB#1 - So what's up with you and Whatshername?
DB#2 - IDK, she seems cool and she's funny but always busts my balls if I don't post on her Wall for a day or two. Then she says she's only kidding. But me being the Facebook Whisperer and all, I know it's more than kidding.
DB#1 - She wants to fuck you.