A way of saying your really funny particularly used by newyorkers
When you react to a situation that should piss you off but its your mans so you can't be pissed at him because you love him.
This bitch lucky I wasn't actually mad only funny-mad lol
When something is devious and/or offensive and is extremely hilarious
To be fair, it was MAD FUNNY
Mad funny literally means mad funny
Friend: “Did you hear that kid got eaten by a pitbull”
Me: “Nah, but that’s mad funny”
Doctor: “sorry sir/ma’am you have stage four cancer”
Me: “Mad funny”