Pot calling the kettle black
Meaning
Accusing someone of a fault you share yourself.
Usage
Used to highlight hypocrisy.
Origin & History
Origins and dates here are approximate summaries. Many idioms have disputed or unknown origins, and not every date has been checked against a historical dictionary, so treat specific dates and stories as a starting point rather than a citation.
Blackened pots and kettles looked the same over open fires.
Proverb used since the 17th century in moral teaching.