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1.
A shy but god looking young lady who puts on a new personality such as more confidence in her look; A sexy lady who no one has been aquainted with just yet; A big booty girl.
"DAMN! There go Miss New Booty. I'm bout to holla at that!" or "Look at her thinkin she Miss New Booty."
by Haley J. April 07, 2006
 
2.
A woman with a modestly sized posterior who, through the use of a product invented by rapper/inventor Bubba Sparxxx, grows an extremely large badonkadonk.
When is my box of Miss New Booty coming in the mail so I can have my ghetto booty?
by The Groove Consultant April 17, 2006