Top Definition
When a man smears poop all over the bottom of his nut sack and then proceeds to use it as a stamp and stamps another person's face. This can be used during sex or at parties to show dominance.
Sally doesn't know it, but she is getting a tainted stamp after school today.

The kids really got into the finger painting mood.....reminds me of back in the day when I used to get tainted stamps.
by AntMan December 14, 2013
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