A designated, identifiable staffer at a play event whose whole job is to watch over safety and consent — and to step in the moment a boundary breaks.
Think of them as the lifeguard of the playroom — a comparison the old NLA-Austin training manual makes explicit, calling the role a "lifeguard." While they're on shift, their word is final: if a monitor says stop, you stop, no debate, no appeal in the moment. But that authority runs on one narrow track. They're not there to approve of your kink, rank your technique, or shut down a scene because it's loud or hard to watch. Safety, not taste.
You'll increasingly hear the same job called "consent monitor," and the rename is the whole point. "Dungeon" is theatrical — it carries the leather-scene heritage and assumes there's an actual dungeon to monitor. "Consent monitor" drops the costume and names the mandate out loud, which travels better into queer and sex-positive spaces where the room is a warehouse, a club, or someone's living room, and the priority is exactly what it says on the badge.
The common mistake is filing them under security. Bouncers keep the wrong people out; monitors keep everyone inside safe, and that includes being a resource, not just an enforcer — the person you flag when something feels off, before it becomes a story. The quiet radical bit: a party that puts a visible, trained monitor on the floor has decided that safety is infrastructure, not vibes. You can feel the difference the second you walk in.