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The person at a meeting principally responsible for ensuring that self-important blowhards, who like to hear themselves talk and tend to substitute their own priorities and agendas for the group's, don't hijack the meeting (similar to what air marshals do for the airlines).
When John brought up a new topic and tried to take the meeting in a different direction, the Meeting Marshal quickly shut him down and got us back on the agenda.
by RangerGr January 31, 2010