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The messy ponytail or bun on top of a woman's head most commonly worn by Britney Spears in tabloid magazine photos.
May look like a hair-pineapple on the crown of the head fashioned crudely with an old scrunchie or even a pen.
"Look at her Stink Bun, her hair looks like it smells!"
by Kelli Kasino May 07, 2009
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