A pony tail placed on top of a girls head, meant to be swung around when dancing.
"OMG look at that girls hair!" "Girl I know, Beckys party pony is popping!!"
by anonymousdictionary123 September 09, 2017
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Party ponie(s) are any hairstyle, often slutty, that include a hair elastic and are believed to make drinking more fun.
Holly is wearing her party ponie out tonight, it’s getting wild.
by ThisIsLexi June 16, 2018
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