Dictionary says that dog-eat-dog means "characterized by ruthless or savage competition." Ray Kroc was a dog-eat-dog businessman. Usually the prase is used in the sentence "it's a dog-eat-dog world."
Dictionary says that dog-eat-dog means "characterized by ruthless or savage competition." Ray Kroc was a dog-eat-dog businessman. Usually the prase is used in the sentence "it's a dog-eat-dog world."