(Chances are you won't see this definition either.)
Guy 2: Well, did you give her shit about it?
Guy 1: Nah bro I didn't wanna start anything, so I just ghost posted
The result is typically confusion and several wasted minutes on the part of the one who was commented on or anyone who posted previously.
Me: ...where's the comment? Jeez, way to ghost post, XYZ.