wet behind the ears
This page is about the idiom wet behind the earsINFORMAL
If someone is wet behind the ears, they don't have much experience of life.
- He's just finished high school, so he's still wet behind the ears.
- Joni's still wet behind the ears and doesn't know how to deal with the other girls who tease her, but she'll soon learn.
Origin: Probably a reference to the inexperience of a baby so young as to still be wet from the birth.
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Contributor: Matt Errey