That's not a fair criticism or statement, considering who is saying it. You think I'm flaky? That's rich, considering you didn't show up either.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
that’s ˈrich(spoken, especially British English) used to say that a criticism somebody makes is surprising and not reasonable, because they have the same fault: Me? Lazy? That’s rich, coming from you!
See also: rich
Farlex Partner Idioms Dictionary © Farlex 2017