G-maning
G-maning is when you sneak peek at someone's chat like a creepy bug. It comes from the G-man in Half-Life, who is basically a creepy bug in a suit. Your friends made this word, and if you G-man someone, the G-man might come and haunt you in the game.
I G-maned my crush and saw she was talking about me behind my back.
He G-maned me during the test and got my answers.
She G-maned me in the group chat and found out I called her ugly.