I'm going to get pissed off about a joke
Why would a joke make you mad, and why didn't you say something at the time?
It's the lousiest joke I've heard online
You shouldn't get angry about a joke. But if it was offensive, you should have said something right away.
No, I will get pissed off about the joke if I want to.
Wow, it was only a joke. Take it easy and try not to get angry over little things like this. You'll give yourself a stroke or worse!