wet behind the ears

1. Immature, inexperienced, and naïve: “Don't rely on his advice about girlfriends; he's still wet behind the ears.”

Idioms and Phrases

Also, not dry behind the ears . Immature, inexperienced, as in How can you take instructions from Tom? He's still wet behind the ears , or Jane's not dry behind the ears yet . This term alludes to the fact that the last place to dry in a newborn colt or calf is the indentation behind its ears. [Early 1900s]

Related Words

• fresh
• new
• raw