Definitions by Bobdinski

Ghosting 

v. intr.

1. Someone who is dead, communicating with teammates about enemy positions and actions - usually by way of team speak.

Origins, Online Multiplayer 1st person shooters: See - CounterStrike

"OMG that ghosting fag, how the fuck did he know I was in there."

Ghosting by Bobdinski January 15, 2004