Because you're not busy with actual work, I've been invited to a meeting about the meeting itself.
Location: The Conference Room (aka The Pit of Despair)
Date: Tomorrow. And maybe the day after that.
Time: When the coffee machine breaks, we'll know it's time.
Agenda: 1. Discuss the meeting. 2. Discuss the discussion. 3. Discuss our feelings about the discussion.
RSVP: Just show up. We'll figure it out.
Don't forget to bring a sandwich.