The person that is below the director in terms of superiority. Generally one of the people with a headset. He/she will be at rehearsals to run them if the director is busy. He/she is generally a nice person unless you piss them off. They are the ones responsible for calling cues during a show, pulling the curtain, sometimes moving set pieces. Without him/her and the rest of the stage crew there wouldn't be a show.
A position in which the 'stage manager' pushes their partner up against the wings of the stage in order to have sex with her upright. When finished they rush backstage to yell at a techie.
