The stain left on the balls and schaft of the penis from menstrial blood. Often a result of sex with a bleeding woman's vagina.
You stained my balls with your bloody vagina blood, now I have a vein stain.
That girl gave me a nasty vein stain! It was great.
That girl gave me a nasty vein stain! It was great.
by B. Adams March 1, 2007
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