What is the meaning of "smart cookie"?

The meaning of "smart cookie" is:

a smart person

What is the definition of "smart cookie"?

The definition of "smart cookie" is:

a smart person


"smart cookie" means

a smart person

Example Sentences:

A: How is your son doing in school?
B: Great! He is getting great marks! He is a smart cookie! How is your son?
A: Terrible! I am jealous!

My new dog is a real smart cookie. She knows how to sit, stay, beg and bark all night.

Note:

smart cookie is often used in an affectionate way

From the Blogs:

What Makes a Smart Cookie?

Media:

smart cookie