Meaning of dog-eat-dog

dog-eat-dog

Pronunciation: (dôg'ēt-dôg', dog'ēt-dog'), [key]
— adj.
  1. marked by destructive or ruthless competition; without self-restraint, ethics, etc.: It's a dog-eat-dog industry.
—n.
  1. complete egotism; action based on utter cynicism: The only rule of the marketplace was dog-eat-dog.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.