Picklepuss noun
A serious, angry, or worried expression on a person’s face.
Don't get angry. The picklepuss will mar your beauty.
She was obviously annoyed, as you could tell from her picklepuss.
A person whose face always wears a serious, angry, or worried expression.
John is a serious guy. Nothing can make that picklepuss smile.
When I saw Mary, a picklepuss in my class, smiling, I was surprised by how charming she looked.
This word alludes to the facial expression of someone when tasting the briny flavor of pickle juice.