2 definitions by Schol-R-LEA

Someone who watches another person while they are tripping on a hallucinogen to make sure they don't hurt themselves or someone else, and keep them calm if they start to have a bum trip. They usually also help the person who is drugged to interpret the experience.

The term was originally used by the Native American Church for the shaman who is running a ceremony, especially one involving peyote.
I agreed to act as a road chief for Mike while he was dropping acid.
by Schol-R-LEA July 22, 2017
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The BDSM equivalent of a Road Chief: someone who observes at a play party or scene in order to monitor it, and step in if things get out of hand. Having a Dungeon Master or Play master is way of ensure that things Safe, Sane, and Consensual, especially in large groups.

Note that this may or may not overlap with two other meanings in that community (someone who is Dom over several others in a bigger scene, or someone who runs a Dungeon or play party). Also, some more nerdy Kink-folk know about the Tabletop RPG meaning and/or video game, so jokes about those do sometimes come up.
The Dungeon Master saw that the gagged sub was bleeding profusely and seemed to be dazed, so she called out the Safe Word. Unfortunately, the Dom didn't listen and she needed to get some of the others to force him away from the sub.
by Schol-R-LEA July 22, 2017
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