Wiktionary
vb. 1 (context idiomatic English) To consume completely. 2 (context idiomatic English) To accept or believe entirely, immediately, and without questioning.
WordNet
v. finish eating all the food on one's plate or on the table; "She polished off the remaining potatoes" [syn: finish, polish off]
use up (resources or materials); "this car consumes a lot of gas"; "We exhausted our savings"; "They run through 20 bottles of wine a week" [syn: consume, use up, eat, deplete, exhaust, run through, wipe out]
enclose or envelop completely, as if by swallowing; "The huge waves swallowed the small boat and it sank shortly thereafter" [syn: immerse, swallow, swallow up, bury]
Usage examples of "eat up".
I hope to zee it, sister, before the Hanover rats have eat up all our corn, and left us nothing but turneps to feed upon.
He had been tied long enough, though, to eat up all the bark of an oak.
I am a true Englishman, and not of your Hanover breed, that have eat up the nation.
His dominion is spreading like a plague upon the face of this Italy, which he has threatened to eat up like an artichoke--leaf by leaf.
The attitude of Prussia compels all the little states to keep up armies, which eat up their substance, and burden the people with taxes.
I saw the devouring mothers of Hell, that eat up their children --- O ye that are without understanding!
And this you say you will eat up also, lest it should fall into good ground and grow again.
I declare, it brings the tears to my eyes sometimes when I see her coming out of Croft's Saturday afternoons, and think of the stone crocks full of nasty messes she's left behind her for that innocent man and boy to eat up .
I don't believe anything can eat up nerve much faster than the burning of a slow fever.
It's likely this Brushwood road tax will eat up all we've saved in years.
But if you reprove others at the very time that you have a cake under your own arm, I will ask you: Had you not better, sir, go into a corner and eat up what you have stolen?
One bat may eat up to four thousand mosquitoes in a night - that's a lot of prevented mosquito bites!
It wouldn't work either, but it would eat up several minutes while not working.