eat in

eat in

To eat at one's home, as opposed to eating at a restaurant ("eating out"). Neither of us felt like going out, so we ate in tonight.
See also: eat
Farlex Dictionary of Idioms.

eat in (to something)

to erode into something; to etch something. The acidic water ate into the rocks on the shore. The acid ate in and weakened the structure.
See also: eat

eat in

to eat a meal at home. I really don't want to eat in tonight. Let's eat in. I'm tired.
See also: eat
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

eat in

Have a meal at home, as in Are we eating in tonight? [Colloquial; second half of 1900s] Also see eat out, def. 1.
See also: eat
The American Heritage® Dictionary of Idioms by Christine Ammer.

eat in

v.
To eat at home, rather than in a restaurant: It's raining outside, so let's eat in tonight.
See also: eat
The American Heritage® Dictionary of Phrasal Verbs.
See also:
  • eat out
  • eat through
  • eat through (something)
  • eating
  • eat (one's) greens
  • eats
  • have something to eat
  • eat face
  • eat lunch
  • eat somebody's lunch