- eat someone up
- eat someone up†1. Lit. to consume the flesh of someone. •
The big bad wolf said he was going to eat you up!
•The bear ate up the fish.
2. Fig. [for an idea] to consume a person. •The whole idea of visiting Australia was just eating her up.
•The obsession to own a car was eating up my brother and his friends.
3. Fig. [for insects] to bite a person all over. •These mosquitoes are just eating me up!
•The bugs literally ate up all the hikers.
4. Fig. [for someone] to overwhelm and devastate someone. •The guy is a devil! He just eats up people!
•Fred will just eat you up. He is a vicious administrator.
Dictionary of American idioms. 2013.