promise the moon

Also found in: Dictionary, Thesaurus, Medical, Legal.

promise the moon (to someone)

 and promise someone the moon
to make extravagant promises to someone. Bill will promise you the moon, but he won't live up to his promises. My boss promised the moon, but never gave me a raise.
See also: moon, promise

promise (somebody) the moon

  (British, American & Australian) also promise (somebody) the earth (British & Australian)
to promise something impossible He had promised her the earth but five years later they were still living in the same small house.
See also: moon, promise
References in periodicals archive ?
You might find you promise the Moon and only deliver a handful of stars -impressive, but not enough.
So the approach seems to be: Promise the moon and the stars to get a bond passed and worry about fulfillment later.
Medical software salespeople have been known to promise the moon.
Bush likes to promise the moon, as he did when he pledged to eradicate global terrorism.
They can promise the moon, but Joe Sixpack is not going to believe they can deliver the moon.
So were the ads, which seemed to promise the moon, and the trainers, who explained things in a language that only computer jocks could understand.