jacking off in a corner
When someone just up and leaves, like they were never there, and everyone assumes they’re jackin’ off in a corner because they’re too dumb to stay and finish the job.
He left the room without saying a word. We all know he was getting his rocks off.
She disappeared mid-sentence. We all know she was taking a solo trip.
He vanished like he was never there. We all know he was getting his head straight.