wasn't born yesterday

idiom

used to say that someone is unlikely to believe something that is not true or to trust someone who is not trustworthy
He said he'd pay me back, but I'll believe it when I see it. I wasn't born yesterday.

Dictionary Entries Near wasn't born yesterday

wasn't

wasn't born yesterday

wasp

Cite this Entry

“Wasn't born yesterday.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/wasn%27t%20born%20yesterday. Accessed 6 Dec. 2022.

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