A deviation of Cool Story Bro. To be used when someone tells you ridonculously lame, non appealing, inscrutable or aggravting jokes. If they get it, it shuts 'em right up. If they don't, then you laugh. You end up being the funny sarcastic asshole anyways.
Dick: What does a sorority girl put behind her ears to make her more attractive?
Nick: whats that?
Dick: Her ankles
Nick: Cool Joke Bro
Dick goes back to work, mentally regretting opening his mouth.