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The bump that you see on good looking girls that wear leggings or yoga pants. The bump above the vagina on the center pelvic region.

This is something you find on fit/thin/skinny girls.

If a girl is lying flat on her back the area kind of looks like an island for a stork/seagull to land on. Hence the name Bird Bump!

Check out the bird bump on that chick in yoga pants!
by diabeetus316 February 04, 2011
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