eat someone out of house and home
US /iːt ˈsʌm.wʌn aʊt əv haʊs ənd hoʊm/
UK /iːt ˈsʌm.wʌn aʊt əv haʊs ənd hoʊm/
1.
to eat a lot of food, especially when you are a guest in someone's house, so that they have to spend a lot of money on food
:
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My teenage son is eating me out of house and home.
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The guests will eat us out of house and home if they stay much longer.