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Meaning of talkathon

talk•a•thon

Pronunciation: (tô'ku-thon"), [key]
— n.
  1. an unusually long speech or discussion, esp. on a matter of public interest, as a Congressional filibuster or a televised question-and-answer session with a political candidate.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.