eat up

To consume completely.
(slang) To cause (someone) to obsess; to figuratively consume (someone).
To subtract, use up.
(informal) To accept or believe entirely, immediately, and without questioning.
(slang) To acclaim or praise (someone or something).
(informal) To find something to be very cute.
(slang) To go quickly on a route.
(slang) To be very good at; to succeed at; to smash. (Compare eat and leave no crumbs.)