where a certain person loves to experiment and try new things, because it sounds challenging, risky, and fun. Especially when it comes to sexual things.
boy: "I bet getting head while driving is fun"
girl: "you want to try it?"
boy: "I love your experimentality."
The habit of sticking to just trying something new and dropping it after short period of time. Used to define people feeling empowered by something, trying to execute it but unable to keep up or proceed with it.
You never finisha game completely and keep buying new ones, you're quite experimentalistic.