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
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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