Eat Someone Out Of House And Home Meaning

(idiomatic) To consume so much of someone's store of food that little or none is left for the owner.

Example: c. 1598, William Shakespeare, Henry IV, Part 2, Act II Scene I:
  He hath eaten me out of house and home; he hath put all my substance
  into that fat belly of his: but I will have some of it out again,
  or I will ride thee o' nights like the mare.