The art of manipulating a man's testicles. The act should appear to be very fluid and magical, similar to Fushigi.
Mike - "Bro, I totally had some chick blow-bang me last night."
Chris - "Oh yeah? Was she pro?"
Mike - "Fuck yeah, I put my junk right in front of this bitch's face & she started contact juggling my balls. It was magic."
also known as orb rolling, sphereplay, sperical balancing, etc. is the act of juggling with fushigi balls (or other balls for that matter).
That bitch did some crazy ass contact juggling on my nuts last night!