Organic Penis Congealer marketed and sold under the name OPC. A powdery compound created from grape seed extract and pushed by network marketers and MLM companies that promises to be a cure-all and sold for an inflated price.
Man, I've been taken that OPC stuff my brother sold me to help my diabetes, but it's made my penis hard as a rock. That shit should really be called Organic Penis Congealer. My girlfriend loves it!
by MayorPogo May 13, 2010
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