To reduce by destroying or consuming the vital powers of; to exhaust, as a country of its strength or resources, a treasury of money, etc.
To empty or unload, as the vessels of the human system, by bloodletting or by medicine.
To consume completely.
To accept or believe entirely, immediately, and without questioning.
to find something to be very cute (typically only used for children or pets)
His behavior has eaten up all the goodwill we felt towards him.
To cover (a distance or an amount).