Here are some examples of how "all that jazz" might be used:
* "I don't care about all that jazz. I just want to enjoy myself."
* "The economy is in a mess. All that jazz about recovery is just talk."
* "She's always going on about her problems. I'm sick of hearing all that jazz."
* "I don't understand all that jazz about quantum physics. It's too complicated for me."
In general, "all that jazz" is a dismissive or negative expression that is used to belittle or ignore something. However, it can also be used in a more humorous or light-hearted way, to express a sense of irony or amusement.