verb - when the "Chester the Molester" strange janitor comes in and hangs around pretending to clean the men's room while you are in the middle of using it - making you feel like he is getting pleasure from being in the presence of men using the facilities.
Man 1: Dude, I just got totally chestered - I am creeped out.
Man 2: What?
Man 1: That weird janitor guy came in the john while I was using it - and just stood there smiling at me while I finished.
Man 2: If I ever see him in there, I make a u turn and run to another.
Man 1: I think I need counseling after that.