Idiom: 'Not born yesterday'

What does 'Not born yesterday' mean?

Meaning: When someone says that they weren't born yesterday, they mean that they are not naive or easily fooled.

Idioms similar to 'Not born yesterday'

All idioms have been editorially reviewed, and submitted idioms may have been edited for correctness and completeness.

If you have a question about idioms, ask us about it in our Idioms Discussion Forum.

If you know of an idiom that you would like to be listed here, please use our online form to suggest an idiom.

See also: