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When you go out with your girls on the weekend and try to talk to and hook up with as many men as humanly possible.
"Yo Kelsey and Nicole, you wanna go to Brew Pub and slay peen?"
"Well of course, we would love to participate in the slaying of the peen, I'm wearing my cropped top and body necklace, it just screams 'I want to slay the peen' "
by DJhousekitty February 13, 2015
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