Crusty Joke
A joke intended to be funny but isn't. Usually contains sarcasm, or just someone's funny thoughts.
"He's not so funny, he makes crusty jokes."
"Man that joke was crusty."
A : "That wasn't funny, was it?"
B : "Yeah, it was crusty."
"Man that joke was crusty."
A : "That wasn't funny, was it?"
B : "Yeah, it was crusty."