eat someone alive
US /iːt ˈsʌm.wʌn əˈlaɪv/
UK /iːt ˈsʌm.wʌn əˈlaɪv/
1.
to criticize someone severely or defeat them easily
:
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The boss will eat him alive if he doesn't finish the report on time.
•
Our team will eat them alive in the upcoming match.