promise someone the moon

US /ˈprɑmɪs ˈsʌmˌwʌn ðə mun/
UK /ˈprɑmɪs ˈsʌmˌwʌn ðə mun/
"promise someone the moon" picture
1.

prometer la luna a alguien, hacer promesas imposibles

to make extravagant or impossible promises to someone

:
He's always trying to promise someone the moon to get what he wants, but he never delivers.
Siempre intenta prometer la luna a alguien para conseguir lo que quiere, pero nunca cumple.
Don't believe him, he's just trying to promise you the moon to get your vote.
No le creas, solo está tratando de prometerte la luna para conseguir tu voto.