when someone has the audacity to reprimand you when they are much worse than you.
John: Yet you're engaged yet you're fucking two of your fiancee's best friends! That's rich, bro. Real fucking rich.
An accusation that just does not work, but applies to the one accusing.
2. Something false that is so outrageously off the mark, it's ridiculous or preposterous.
Just so wrong, that it's funny.
Britney: That's rich, Kevin. And new york minute was a terrible movie.
K-Fed: That's it! I'm sick of you not knowing basic English Idioms. I don't know what I ever saw in you. It's over!
Eric: Yo, guys, these Mexicans in my class keep saying the dumbest shit in Spanish.
Tyler: What are they from Spain or something?
Eric: No... They're Mexicans, - they're from Mexico!
Tyler: Wait but.. they speak.. shit.
Joseph: Oh that's rich! FAIL!