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1 A power source.

2 A simile for your girlfriend's brown eye.
Your girlfriend's ring-piece is like a 9 volt battery. You spend too long looking at it and you're going to want to stick your tongue on it.
by RoryGalway February 12, 2010
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While licking an asshole the recitient issues a small fart resembling the tingle you get from a 9v battery
i started licking this chick's asshole and she gave me the 9 Volt Battery! WTF!!!
by Lucky Lucifer August 18, 2011
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