When someone says something rude but plays off as a joke so to be unnoticed by others around
'Why is she here?'*laughs'just kidding it wasn't an abusive joke'
Person 1: what to hear fun joke
Person 2: yes
Person 1: Fag
Use of the phrase "das joke" is appropriate when you want to indicate another person's failure to recognize a joke in conversation.
You: "You're pretty good at this game. It seems like you play often."
Them: "Geez louise, thanks bro! This is actually my first time."
You: "Das joke."
A joke so mindfuckingly hilarious that it turns you insane or gay, depending on your personality type.
Charlie Sheen: "That Dave Chapelle asylum joke was so funny, that I literally went insane and started rubbing testosterone cream all over my balls!"
Durham jokes are usually not very funny, sometimes they are stupid enough that you can laugh at the person saying them
"PeePeePooPoo YAIY YAIY YAIY YAI!!" is an example of a Durham Joke
The line between being in on the joke and being part of the joke.
Tom was laughing at the joke until he crossed the joke line and realized he was the butt of the joke.