eat somebody alive

Từ điển Oxford Advanced Learner 8th

ˌeat sb aˈlive idiom
(informal)
1. to criticize or punish sb severely because you are extremely angry with them
•He'll eat you alive if he ever finds out.
2. to defeat sb completely in an argument, a competition, etc
•The defence lawyers are going to eat you alive tomorrow.
3. usually passive (of insects, etc.)to bite sb many times
•I was being eaten alive by mosquitoes.
Main entry: ↑eat_idiom