dog-eat-dog
US /ˈdɔɡ.it.dɔɡ/
UK /ˈdɔɡ.it.dɔɡ/
1.
used to describe a situation in which people will do anything to be successful, even if it harms other people
:
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It's a dog-eat-dog world out there, so you have to be tough.
•
The competition in the tech industry is truly dog-eat-dog.