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1.
A term used to describe a stereotypical party girl.

"We went to the club and there where a bunch of Stephy's there."
"You're acting like a stephy"
by craigisamazingx January 16, 2007
 
2.
A term often used to describe a Glasweigan Paramore fan, who often changes their hair colour and doesn't take shit from ANYONE.

Usually great admirers of collar bones.
That Stephy girl used to pure fancy Kate Moss
by Cool kiddo April 29, 2008
 
3.
in australia, someone that needs a new face.
e.g your a stephy

e.g hey look their is a stephy
by Brett Kefelkanov November 30, 2007