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3.
one's personal affairs
Ya'll be mackin' up in my biznass.
by Nate Dawg September 19, 2003
 
1.
business
"Stay the fuck up out my biznass" - Ludacris
by Julz November 07, 2003
 
2.
A commonly used Ghetto-term for "business"
It's my biznass, stay out of it!
by dani_bella November 13, 2002