A combination of the word "shit" and "nizzle" (slang for business) to form it's compound fusion, Shiznizzle; used to describe anything which has affectively impressive qualities.
ShizzNizz derived from BizzNizz. 1st heard in the movie Orange County a stoned Jack Black, says "...and this little piggy's gonna be lauging all the way to the BizzNizz.." while mentioning his T-shirt business idea. BizzNizz an excellent money making scheme.ShizzNizz is is anything good, positive, awesome. ShizzNizz can be shortened to Shizz.