O phrase often used by black people, or niggrous apeious, to express desire for the other party to shut the fuck up...as it were, or to express shock and awe at the previous statement, or simply to ask the other person to leave.
Jamal: Yo Bitch, you fat!
Bitch: GET OUTTA MA FACE WITH THAT STUFF
Tyrone: Hey mamma! We all outta arange soda
Mamma: GET OUTTA MA FACE WITH THAT STUFF!!!!