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1.
short word for STUNNING. cooler version of stunner.

means ur GORGEOUS, hunny.

2. shades
that girl is a stunnah.
rock your stunnah shades on!
look at that stunnah girl walkin the streets
by rockin'thesch8lhallway March 21, 2009
 
2.
The negative use of the word "stunna". If someone is a "Stunnah" they just THINK they are hot, drives nice cars, and is all around fly. In reality a Stunnah is actually a large tool void of any serious game at all.
That guy rolls on Wal-mart plastic spinners on his 1995 ford taurus... what a STUNNAHHHHH
by Jamal Katchum November 24, 2008