1 definition by IKNOWEVERYTHINGABOUTJARGON

Top Definition
When a girls vagina is shown from behind when she bends over
A girl wearing a skirt and no panties bends over at a bar, and you see her back vagina.

OR

asking a friend, "Can you see my back vagina?" when you are walking up stairs.
by IKNOWEVERYTHINGABOUTJARGON January 27, 2010

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