Promising them the earth - Idioms by The Free Dictionary
promise (one) the earth (redirected from promising them the earth)
promise (one) the earth
To promise one something that is not feasible or cannot be done. Your clients will come to distrust you if you keep promising them the earth and then inevitably fail to deliver.
promise the earth
If someone promises the earth, they promise to give people things that they cannot in fact possibly give them. `Politicians have lost credibility,' he complained, `they promise the earth and don't deliver.'
References in periodicals archive
If only he knew that in fact Santa was on easy street, cuddly youngsters on his knee (where the sex offenders register allows) and promising them the earth
He said: "At home, they have abused the trust of the British people - promising them the earth
but delivering them too little.
He said: "They never really went away but there has been a particular upsurge in complaints recently about unqualified sales staff calling on businesses promising them the earth