On Discord, a "Ghost Ping" is when someone mentions or direct message someone else, but delete the message before they can read it, leaving them with an empty notification.
When a large group are assigned to a big rush job, one or more quietly disappear.. only to suddenly appear for a short while, as though performing tasks involved in the project. NOT! They are slipping off to text or other private tasks of their own. They are.. 'ghosting the job'.
Boss: 'Hey you guys - have you seen Russ or Dave?' Um.. yeah, they were just here a second ago.. but I can't see them now. Oh, here they come. Boss: 'You two are screwing the pooch! Quit ghosting the job and get busy!!'
When a person cuts off all communication with their friends or the person they're dating, with zero warning or notice before hand. You'll mostly see them avoiding friend's phone calls, social media, and avoiding them in public.
I haven't seen Tom in 3 months. I think he may be ghosting me.