Anti-Gravity Ball Sack Capacitor. IE: The feeling you get when something made you extremely happy, similar to when you are on a rollercoaster ride and your balls float up and feel neat.
"Did you see the massivemilk bladders on that titty fish. id like to stick it in her panooch." exclaimed the Rabbi. "yea, s.c.g.i." said the amish minister.