promise somebody the earth
idiomPart ofearth
promise somebody the earth — idiom
1. to make many promises that are unlikely to be kept, especially in order to persu
1.idiom
Definition
to make many promises that are unlikely to be kept, especially in order to persuade someone to do something
Example
The salesman promised us the earth, but after we signed the contract nothing was delivered on time.
Politicians often promise the earth before an election and forget about it afterwards.