it is a saying also known as "Fancy shit" but you don't wanna say it, it could mean for fricked up people doing fricked up things, Used for memes, not many people understand it, when you're on sugar or drunk it's a most likely you'll say it, Hope you win a casino during that "Fanzy shiz stuff"
Random parisite 1: hey bro! what's shakin'?
Random parisite 2: RaNdoM aNd FaNzY sHiz
Random parisite 1: ._.