1. To partake in some kind of sexual activity, as in a Kurt Vonnegut novel.
2. To perform dangerous, high-speed, or otherwise extreme activities while listening to free-form jazz. Result: absolute euphoria.
1: I have a lot of homework to work on tonight...but I would much rather be jazzing some broad at a party.
2: Would you care to go jazz-boating this weekend? It's a sport where high-society freeform jazz meets Jackass, in which one swings from a pole on a speeding boat by a rope attached to the ankle while listening to Ornette Coleman through Sony MDR-XB700 headphones.