Did you say something to him that was maybe a bit hypocritical — in other words, did you accuse him of something that you always do, or something like that?

Because when someone says that it is like the pot calling the kettle black, it means basically being hypocritical.

For example: a smoker says to his smoking buddy “dude, your breath stinks” or a really overweight person calls someone else fat. Things like that. These may not be perfect examples, but they are all I could think up on such short notice! 😉

Hope this makes sense to you and answers what you wonder about.

It means, “Well, he’s being a hypocrite.”

Hope that’s helpful. 😀