be wet behind the ears
US /bi wɛt bɪˈhaɪnd ðə ɪərz/
UK /bi wɛt bɪˈhaɪnd ðə ɪərz/

1.
mentah, belum berpengalaman
to be young and without experience
:
•
He's still wet behind the ears, so don't expect him to handle this complex project alone.
Dia masih mentah, jadi jangan harap dia dapat mengendalikan projek kompleks ini sendirian.
•
When I started my first job, I was completely wet behind the ears.
Apabila saya memulakan kerja pertama saya, saya benar-benar mentah.