(proverb) you are accusing someone of doing a thing that you are guilty of
Example Sentences:
Mom: I can’t believe you smoked marijuana! I’m so angry!
Son: I’m 18 years old. Didn’t you smoke marijuana when you were 18?
Mom: Yes, but this is different! I was more mature than you!
Son: Well, this is the pot calling the kettle black! You did exactly the same thing.
The Shane tried to criticize Wayne for driving drunk, until he realized that doing that would be like the pot calling the kettle black, because Shane had been arrested for drunk driving two years ago.

Similar idioms: