be born yesterday

Definition

To be new, naive, innocent, inexperienced, or easily deceived.

Example Sentences

• "I was not born yesterday, you know. I have done this before!"
• ""Do you think," he added, with an ironical grin, "that you'll go for to gammon me into that air! I'm hinnocent, I know, but I wasn't born yesterday exactly.""
• ""Say, do I look like I was born yesterday? See any green in my eye, Cactus Center?""