not be born yesterday
idiomPart ofyesterday
not be born yesterday — idiom
1. It means that someone is not easily tricked or fooled because they have enough e
1.idiom
Definition
It means that someone is not easily tricked or fooled because they have enough experience.
Example
Maya smiled and said, "I wasn't born yesterday, you know."
Do you think I'd believe that story? I wasn't born yesterday!