Definition of "backbreaker" [backbreaker]

• A strenuous, taxing, exhausting, backbreaking task (noun)

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• "The backbreaker was a seven-point swing in the span of about 20 seconds when an intentional foul on Singler led to a flurry of points."
• ""I definitely think it was a backbreaker," Coach Bruce Boudreau said of Gagne's goal."
• "What makes it all so relevant now is that the amount of available credit -- the backbone or backbreaker of economic expansion -- is still a gory story, although some economic trackers, obvious long-time residents of Disneyland, are saying the just opposite, that the credit squeeze is practically history."