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Meaning of eightball

eight•ball

Pronunciation: (āt'bôl"), [key]
— n.
    1. a black ball bearing the number eight.
    2. a game in which one player or side must pocket all of either the solid-color balls or the striped ones before being permitted to attempt the pocketing of the eightball, which wins.
  1. an inept person.
  2. in a difficult, disadvantageous, or uncomfortable situation: He hasn't studied all term, and now he's behind the eightball.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.