eat up

Short definition from Wiktionary

Verb

1. 1
   To consume completely.
2. 2
   To cause (someone) to obsess; to figuratively consume (someone).
3. 3
   To subtract, use up.
4. 4
   To accept or believe entirely, immediately, and without questioning.
5. 5
   To acclaim or praise (someone or something).
6. 6
   To find something to be very cute.
7. 7
   To go quickly on a route.
8. 8
   To be very good at; to succeed at; to smash. (Compare eat and leave no crumbs.)
9. 9
   To completely dominate someone else, especially with a comeback or clapback.