Dont Mack 

"Dont mack" commonly used to indicate as a passenger that you do not wish to witness a vehicle crash.

As the white Audi cut up through traffic, the passenger yelled, "Ayooo, dont mack bruh."

Dont Mack by Dontmack October 29, 2023

don't mack on my nine 

A phrase created after some one misheard "back in year nine...".
Now accepted as a faux-ghetto slang term. Can be used at any random interval but works well if some one has offended or insulted you in any way.

Man 1: You're a knob
Man 2: Don't mack on my nine

don't mack on my nine by Vincentw00t September 29, 2005