1
                           general:: 
                            Phrase(s): eat (a meal) out [and] dine out 
to eat a meal at a restaurant.  •  I like to eat a meal out every now and then.  •  Yes, it’s good to eat out and try different kinds of food.  •  It costs a lot of money to dine out often., Phrase(s): eat someone out 
Go to chew someone out., Phrase(s): eat out 
to eat a meal away from home, as at a restaurant.  •  I just love to eat out every now and then.  •  Let’s eat out tonight. I’m tired., Phrase(s): eat something out 
1. to eat some kind of meal or a particular food away from home, as at a restaurant.  •  We eat fish out, but we don’t cook it at home.  •  We may eat out a meal or two, but certainly not every meal. 2. [for something or an animal] to consume the inside of something.  •  The ants ate the inside of the pumpkin out.  •  The ants ate out the pumpkin.
                        
                        
 
                        
                            McGrawhill's American Idioms And Phrasal Verbs
                        
                        
                    
                    
                        2
                           general:: 
                            1. Have a meal outside one's home, usually at a restaurant. For example, We're almost out of groceries, so let's eat out tonight. [Second half of 1900s] For the antonym, see EAT IN. 2.
                        
                        
 
                        
                            American Heritage Idioms